Kan een afbeelding zijn van hond

Dit is ons nieuw hondje Kira, een kruising van een waterhond en een Podenko. Ze is sinds 7 februari 2024 bij ons en druk bezig ons hart te veroveren. Het is een lief, aanhankelijk hondje, dat zich op een week snel aan ons heeft aangepast. Ze is heel vinnig en nieuwsgierig, een heel ander hondje dan Noleke.

This is our new dog Kira, a cross between a water dog and a Podenko. She has been with us since February 7, 2024 and is busy winning our hearts. She is a sweet, affectionate dog who quickly adapted to us within a week. She is very quick and curious, a very different dog than Noleke.

Carl Sagan Space GIF by Feliks Tomasz Konczakowski

X Files Ufo GIF by SeeRoswell.com

1990: Petit-Rechain, Belgium triangle UFO photograph - Think AboutIts

Ufo Pentagon GIF

ufo abduction GIF by Ski Mask The Slump God

Flying Sci-Fi GIF by Feliks Tomasz Konczakowski

Season 3 Ufo GIF by Paramount+

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Inhoud blog
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    The purpose of  this blog is the creation of an open, international, independent and  free forum, where every UFO-researcher can publish the results of his/her research. The languagues, used for this blog, are Dutch, English and French.You can find the articles of a collegue by selecting his category.
    Each author stays resposable for the continue of his articles. As blogmaster I have the right to refuse an addition or an article, when it attacks other collegues or UFO-groupes.
     

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    Deze blog is opgedragen aan mijn overleden echtgenote Lucienne.

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    In 2011 startte ik deze blog, omdat ik niet mocht stoppen met mijn UFO-onderzoek.

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    Een interessant adres?
    UFO'S of UAP'S, ASTRONOMIE, RUIMTEVAART, ARCHEOLOGIE, OUDHEIDKUNDE, SF-SNUFJES EN ANDERE ESOTERISCHE WETENSCHAPPEN - DE ALLERLAATSTE NIEUWTJES
    UFO's of UAP'S in België en de rest van de wereld
    In België had je vooral BUFON of het Belgisch UFO-Netwerk, dat zich met UFO's bezighoudt. BEZOEK DUS ZEKER VOOR ALLE OBJECTIEVE INFORMATIE , enkel nog beschikbaar via Facebook en deze blog. Verder heb je ook het Belgisch-Ufo-meldpunt en Caelestia, die prachtig, doch ZEER kritisch werk leveren, ja soms zelfs héél sceptisch... Voor Nederland kan je de mooie site www.ufowijzer.nl bezoeken van Paul Harmans. Een mooie site met veel informatie en artikels. MUFON of het Mutual UFO Network Inc is een Amerikaanse UFO-vereniging met afdelingen in alle USA-staten en diverse landen. MUFON's mission is the analytical and scientific investigation of the UFO- Phenomenon for the benefit of humanity... Je kan ook hun site bekijken onder www.mufon.com. Ze geven een maandelijks tijdschrift uit, namelijk The MUFON UFO-Journal. Since 02/01/2020 is Pieter ex-president (=voorzitter) of BUFON, but also ex-National Director MUFON / Flanders and the Netherlands. We work together with the French MUFON Reseau MUFON/EUROP. ER IS EEN NIEUWE GROEPERING DIE ZICH BUFON NOEMT, MAAR DIE HEBBEN NIETS MET ONZE GROEP TE MAKEN. DEZE COLLEGA'S GEBRUIKEN DE NAAM BUFON VOOR HUN SITE... Ik wens hen veel succes met de verdere uitbouw van hun groep. Zij kunnen de naam BUFON wel geregistreerd hebben, maar het rijke verleden van BUFON kunnen ze niet wegnemen...
    06-04-2020
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Gliese 338Bb: Super-Earth Found in Nearby Binary System

    Gliese 338Bb: Super-Earth Found in Nearby Binary System


    Astronomers using the CARMENES spectrograph at Calar Alto Observatory in Spain have discovered a super-Earth exoplanet orbiting an M-dwarf star in the binary system Gliese 338. The newfound planet orbits on the inner edge of the habitable zone and is much more massive than Earth.
    An artist’s impression of the super-Earth Gliese 338Bb and its stars. Image credit: Sci-News.com.

    An artist’s impression of the super-Earth Gliese 338Bb and its stars.

    Image credit: Sci-News.com.

    Gliese 338 is a wide binary system located approximately 20.7 light-years away from Earth.

    The stellar system is over one billion years old, and consists of two similar M0-type stars: Gliese 338A (also known as GJ338A or HD 79210) and Gliese 338B (GJ 338B or HD 79211).

    The stars are between 64 and 69% the mass of the Sun. The projected separation between them is about 109 AU.

    A team of astronomers led by Centro de Astrobiología’s Dr. Esther González-Álvarez explored the presence of small planets in tight orbits around Gliese 338A and B using the spectroscopic radial velocity technique.

    They analyzed radial velocity data from the CARMENES spectrograph as well as ground-telescope photometry from Las Cumbres and Sierra Nevada observatories.

    The planet they discovered orbits the smaller member of the system, Gliese 338B, once every 24.45 days at a distance of 0.14 AU.

    Named Gliese 338Bb (GJ 338B or HD 79211b), the alien world has a mass of 10.3 times the mass of the Earth.

    “Gliese 338Bb is one of the least massive planets ever discovered in one star of a binary system of relatively small separation,” Dr. González-Álvarez and her colleagues said.

    They estimate the planet’s temperature to be between 27 and 117 degrees Celsius (81-243 degrees Fahrenheit).

    “Gliese 338Bb lies inside the inner boundary of the habitable zone around its parent star,” the astronomers said.

    “The masses, spectral types, brightnesses, and even the rotational periods are very similar for both stars, which are likely coeval and formed from the same molecular cloud, yet they differ in the architecture of their planetary systems.”

    The team’s paper will be published in the journal Astronomy & Astrophysics.

    _____

    E. González-Álvarez et al. 2020. The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting HD 79211 (GJ 338 B). A&A, in press; arXiv: 2003.13052

    http://www.sci-news.com/ }

    06-04-2020 om 23:46 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Fossil skull suggests human ancestors emerged 200,000 years earlier than thought

    Fossil skull suggests human ancestors emerged 200,000 years earlier than thought

    This newly discovered fossil is a hugely important find, say scientists. It means that one of our earliest ancestors possibly originated in southern Africa. Read more

    06-04-2020 om 23:20 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.NASA CASSINI MISSION'S FINAL MOMENTS REVEAL THE REASON WHY SATURN'S UPPER ATMOSPHERE IS SO HOT

    NASA CASSINI MISSION'S FINAL MOMENTS REVEAL THE REASON WHY SATURN'S UPPER ATMOSPHERE IS SO HOT

    Before it met its doom, the spacecraft gathered data that puts to rest a long-standing mystery about the sixth planet from our Sun.

    After two decades in space, on September 15, 2017, NASA's Cassini spacecraft ended its life dramatically by plunging into Saturn’s atmosphere, disintegrating into nothingness.

    But before it sacrificed itself, NASA’s mission to the ringed giant conducted 22 close orbits over a period of around five months, threading through the space between Saturn's main body and the planet's rings.

    Dubbed Cassini’s Grand Finale, this final tour of Saturn revealed unprecedented detail about the planet's atmosphere, magnetic field, iconic rings, and opaque clouds. And now, almost three years on, this treasure trove of data have resolved yet another mystery about the planet and its curious climate.

    In a new study published Monday in the journal Nature Astronomy, a team of scientists used data from Cassini’s Grand Finale to create a map of temperatures of Saturn’s temperatures.

    The findings suggest a resolution to the planet’s ENERGY CRISIS. Unlike on Earth, Saturn’s ‘energy crisis’ has nothing to do with a limited supply of natural resources. Instead, the crisis on Saturn refers to the inexplicably hot temperatures in the planet’s upper atmosphere.

    In the past, scientists had observed strangely hot temperatures in Saturn's upper atmosphere — twice as hot as they should be. The new data support a long-standing hypothesis that the planet’s aurorae may be responsible for driving these extreme temperatures.

    Ultimately, the findings could help scientists in their quest to find signs of habitability in exoplanets.

    SATURN'S STRANGE CLIMATE — For years, scientists have tried to understand why Saturn’s upper atmosphere, known as the planet’s thermosphere, is much hotter than it should be.

    Earth’s thermosphere is heated by the Sun. But the further you get away from the Sun in the Solar System, the less the intensity of the star’s radiation. That means objects further in the Solar System receive less heat from the star.

    Saturn is the sixth planet from the Sun. It is about 10 times further away from the Sun than Earth. Based on this, the temperature of its upper atmosphere should be around 150-200 Kelvin, or between -190 and -100 degrees Fahrenheit. Freezing, in other words.

    The ringed giant has posed an energy crisis in the Solar System. 
    NASA/JPL-Caltech/Space Science Institute

    Instead, the temperatures of Saturn’s upper atmosphere are between 350-600 Kelvin, according to the study. That's the equivalent of a positively boiling 170 to 620 degrees Fahrenheit.

    “When I plotted all the temperatures up from pole to pole, I could see that the temperatures and polar regions were not doing what all the models were predicting,” Zarah Brown, a researcher in planetary atmosphere at the University of Arizona’s Lunar and Planetary Laboratory, and lead author of the new study, tells Inverse.

    Instead, the results reveal that Saturn’s upper atmosphere is at its hottest at the planet’s poles, where there are auroras. Similar to Earth’s Northern Lights, auroras take place when the Sun emits charged particles in the form of solar wind, exciting oxygen and nitrogen atoms in Saturn's ionized upper atmosphere.

    The auroras generated by the charged solar wind connect Saturn’s thermosphere to its magnetosphere, a protective bubble of magnetic field that surrounds planets. This process results in electric currents that in turn heat the planet's thermosphere up. The extreme heating is a direct result of solar wind interacting with particles being emitted by Saturn’s moons and rings, the study suggests.

    “The heat is coming from these processes associated with the aurora,” Brown says.

    “The data supports that by just the fact that there’s sort of this ring of elevated temperatures right near the auroral regions, that is suggestive that that’s where the heat is being deposited.”

    A view of Saturn, with its orbiting moon Titan, captured by Cassini.
    NASA/JPL-Caltech/Space Science Institute

    Other giant planets in the Solar System like Jupiter and Uranus also experience inexplicable heating in their upper atmosphere, although whether the same auroral process is driving their strange temperatures can't be inferred from these data, Brown says.

    But they do suggest new avenues for researchers to explore.

    “No other giant planet has been studied in this kind of detail, this is really a great starting point,” Brown says.

    CASSINI WONDERS  Cassini launched on October 15, 1997, and entered Saturn’s orbit on June 30, 2004. The intrepid satellite was originally slated for a four year mission, which was later extended twice.

    During its 20-year mission, the spacecraft conducted nearly 300 orbits of Saturn, and took more than 453,000 images and sent back 635 gigabytes of data.

    In April, 2017, Cassini began its final tour of the giant planet, diving further into the approximately 1,200-mile-wide gap between Saturn and its rings at a distance of about 1,000 to 2,500 miles above the planet’s clouds.

    The team behind the mission were unsure if the spacecraft could even survive this close encounter with Saturn, and whether some of the material from the planet’s rings would ultimately destroy Cassini. But the risk paid off.

    The reason for its dramatic death drop was to avoid crashing into Saturn’s moons and contaminating them, especially with Enceladus and Titan believed to contain some form of life.

    “It was a risky procedure, we didn’t know if it would encounter impact,” Brown says.

    “The Grand Finale data set is really unprecedented,” she says. “It was designed to give us this very special ability to have this snapshot of Saturn’s atmosphere.”

    But even as the spacecraft plunged to its death, it was still sending data back to Earth.

    EXPLORING OTHER WORLDS — The data not only help us better understand Saturn, but may also be useful in the quest to study exoplanets, and potentially find life outside the Solar System.

    Missions such as NASA’s Kepler and the Transiting Exoplanet Survey Satellite (TESS) have led to the discovery of more than 4,000 exoplanets to date.

    Most of the exoplanets scientists have found have been giant planets such as super-Earths or mini-Neptunes, and some of them had lost their atmosphere at some point during their existence.

    Studying giant planets in our own Solar System may provide scientists with a more detailed model of what these faraway worlds look like than we could otherwise achieve with current technology.

    “Understanding the planets in our Solar System is critical to understanding exoplanets in general,” Brown says.

    Abstract: Temperatures of the outer planet thermospheres exceed those predicted by solar heating alone by several hundred degrees. Enough energy is deposited at auroral regions to heat the entire thermosphere, but models predict that equatorward distribution is inhibited by strong Coriolis forces and ion drag1,2. A better understanding of auroral energy deposition and circulation are critical to solving this so-called energy crisis. Stellar occultations observed by the Ultraviolet Imaging Spectrograph instrument during the Cassini Grand Finale were designed to map the thermosphere from pole to pole. We analyse these observations, together with earlier observations from 2016 and 2017, to create a two-dimensional map of densities and temperatures in Saturn’s thermosphere as a function of latitude and depth. The observed temperatures at auroral latitudes are cooler and peak at higher altitudes and lower latitudes than predicted by models, leading to a shallower meridional pressure gradient. Under modified geostrophy3, we infer slower westward zonal winds that extend to lower latitudes than predicted, supporting equatorward flow from approximately 70° to 30° latitude in both hemispheres. We also show evidence of atmospheric waves in the data that can contribute to equatorward redistribution of energy through zonal drag.

    https://www.inverse.com/ }

    06-04-2020 om 22:36 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.WATCH AS NASA'S JAMES WEBB TELESCOPE DEPLOYS ITS MASSIVE, HONEYCOMB-SHAPED MIRROR

    WATCH AS NASA'S JAMES WEBB TELESCOPE DEPLOYS ITS MASSIVE, HONEYCOMB-SHAPED MIRROR

    NASA’s James Webb Telescope is designed to peer back in time across the universe, observing distant galaxies that are over 13 billion light years away.

    But to get a glimpse, the telescope needs a pretty massive mirror capable of revealing the cosmos in great detail. And now, you too can see it in all its golden, shimmery glory before it heads into space.

    The telescope’s 21 feet-wide, 4-inch-thick mirror was unfurled in a video released by NASA this week.

    When fully deployed on the telescope, it appeared like a great, golden, reflective honeycomb.

    While beautiful, the video also demonstrates one of the critical, final tests that the James Webb Telescope has to undergo at the Northrop Grumman Space Systems in Redondo Beach, California. Once it passes these tests, it will be packaged up, and shipped to French Guiana for launch onboard an Ariane space rocket.

    In the video, the telescope’s primary mirror is deployed to the same position that it will have when floating through space.

    REFLECTIVE HEXAGONS — The large mirror is needed to reflect light from objects in space. Doing this essentially amplifies the light, enabling the telescope's instruments to better pick up on what it is seeing. But the James Webb Telescope requires a mirror so large, that it is too large to fit into the Ariane 5 rocket.

    A mirror this large has never been launched into space, so the team of engineers behind the telescope had to get creative.

    In order to fly the telescope into orbit, the mirror must be tucked away during the ride to space. The James Webb Telescope mirror was built in 18 separate segments on a structure that folds up, each of the segments is around 4.3 feet in diameter.

    Engineers at the Northrop Grumman Space Systems performed the final deployment test for the telescope's massive mirror.
    NASA/Chris Gunn

    The reason why the segments are shaped like hexagons is so that they could fit together with no gaps in between, according to NASA.

    Once in orbit, the James Webb Telescope can fully spread its wings, deploying the segments to its sides and initiating detailed observations of our cosmos.

    “Deploying both wings of the telescope while part of the fully assembled observatory is another significant milestone showing Webb will deploy properly in space,” Lee Feinberg, optical telescope element manager for Webb at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, said in a statement.

    “This is a great achievement and an inspiring image for the entire team.”

    A HISTORY OF THE JAMES WEBB TELESCOPE

    The James Webb Telescope has been in the works for more than a decade, since 1996. It is meant to be a successor to the Hubble Space Telescope, which has been feeding scientists with valuable data and imagery on the cosmos for 30 years.

    Once it launches, the James Webb Telescope will be the most powerful telescope ever designed, with an unprecedented ability to observe objects that are far away in the universe and therefore unfold the history of the cosmos.

    The James Webb Telescope in its full, shimmery glory.
    NASA

    But it’s been a rather bumpy road to space for this large telescope.

    The James Webb Telescope has already endured many delays, with an initial launch window scheduled for 2018, and later pushed back to 2020 and finally set for the year 2021.

    As the novel coronavirus continues to threaten space agencies’ plans to carry on with space business as usual, the future remains uncertain for James Webb.

    The final test was carried out by limited personnel at Northrop Grumman before NASA shutdown all testing or integration operations. The agency wants to limit the number of its employees on site to help stop the spread of the coronavirus.

    NASA will reassess the situation for both the James Webb Telescope and its other science operations within the next couple of weeks, and make decisions accordingly. We hope that — sooner rather than later — we might see this gigantic honeycomb make its way out into the cosmos.

    06-04-2020 om 22:11 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.NASA’s New Mars Rover Carries Yet Another Message to Extraterrestrials

    NASA’s New Mars Rover Carries Yet Another Message to Extraterrestrials

    NASA’s Perseverance Mars Rover
    @NASAPersevere
    Some of you spotted the special message I’m carrying to Mars along with the 10.9+ million names you all sent in. “Explore As One” is written in Morse code in the Sun’s rays, which connect our home planet with the one I’ll explore. Together, we persevere. http://go.nasa.gov/33S5SCa

    On March 30th, NASA let the world know via tweet that its next Mars Rover, Perseverance, will carry the names of 10.9 million people etched on three silicon chips, essays of the 155 finalists in NASA’s “Name the Rover” contest, and a small plaque with a picture of the Sun, Earth and Mars, and a message – “Explore as One” – written in Morse code. Morse code? Are Martians still in the telegraph age?

    This isn’t the first cryptic message NASA has left for extraterrestrials. In 1969, the Apollo 11 astronauts carried a silicon disc the size of a 50-cent piece (ask your grandpa how big that is) containing goodwill messages from leaders of 73 countries (the U.S. and its Cold War allies) and the names of the leaders of Congress, the four committees of the House and Senate responsible for legislation related to NASA, and NASA’s current and past administrators. Buzz Aldrin dropped it on the lunar surface (after being reminded by Neil Armstrong) right before they left the Moon. It’s probably covered in dust by now.

    Apollo 11 disk

    Equally famous and easier to interpret were the Pioneer Plaques attached to Pioneer 10 and 11, the first Earth ships (that we know of) known to have left the solar system. They contained a picture of a naked human couple (designed by Carl Sagan and drawn by his wife), along with illustrations intended to show where Earth is. To show how times have changed, many newspapers printing photos of the plaque in 1972 had to hide the man’s penis and the woman’s nipples. Would ETs be offended? Everything was written in English so experts were still thinking any being who picks it up has been monitoring our radio and television broadcasts.

    Pioneer plaque

    Voyagers 1 and 2 went beyond radio and TV to record albums (ask your grandfather). Carl Sagan was again involved in the design and selection. The record contains audio signals for 115 images, a selection of sounds of nature, actual musical selections (from Bach to Chuck Berry), greetings in 55 ancient and modern languages (a definite improvement) and a Morse code depiction of the Latin phrase “per aspera ad astra” – “through harsdship to the stars.” Fortunately for any ETs picking up one of the Voyagers, the gold record has pictorial instructions of how to listen to it and translate the pictures from the audio signals. And yes, there’s drawings of an anatomically correct naked male and naked female.

    Voyager Gold Record

    The next spaceship to head out of the solar system was the New Horizons. It was originally supposed to complete its mission at Pluto and then receive a digital signal from Earth called the One Earth Message. Similar in concept to the Voyager Gold Records, the One Message would contain digital (not analog) images submitted and selected by people around the world. This crowd-sourced message could even be updated as long as there was contact with New Horizons. Unfortunately, NASA never fully approved the idea and it didn’t happen. Instead, ETs pulling New Horizons into their own cargo bay will find some really lame stuff – two CDs of photos of the mission team and human faces (but no instructions on how to read them), a piece of another space ship that was not involved in the mission (?), two U.S. postage stamps and quarters (so they can mail a message back?), a nylon American flag (but no instructions on how to salute), and the ashes Clyde Tombaugh, the astronomer who discovered Pluto (but no instructions on how to scatter them).

    Here’s a quarter — call if you find this spaceship

    Does it seem the messages are going downhill?

    That brings us back to Perseverance and its Morse code greeting.

    Does that answer the question?

    https://mysteriousuniverse.org/ }

    06-04-2020 om 21:26 geschreven door peter  

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    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.The Night Flyer: A Report of Odd Blue Lights and a “Mystery Plane”

    The Night Flyer: A Report of Odd Blue Lights and a “Mystery Plane”

    When most people think of a “UFO”, any number of things may come to mind. In likelihood, the many will envision a disc-shaped “flying saucer” or something similar; it is an image that has indelibly shaped our attitudes about unidentified flying objects since 1947 when American newspapers first began calling them “flying saucers.”

    Not all reports of UFOs involve disc-shaped objects, of course. In fact, far more often, reports of unidentified flying objects involve sightings of things that are far less distinct: often they are merely unusual lights seen at night which, appropriately enough, the late J. Allen Hynek referred to as “nocturnal lights.”

    Even if an object seen by the cover of night is unidentifiable at the time of observation, there are a lot of things that can be discerned about what that object or aircraft is not, based on light color and patterns.

    The following account was shared with me by an observer named Jen, who observed the object in question shortly after 4 AM while traveling to work.

    “I was driving to work and it was about 4:30 in the morning. There’s not usually anyone else on the road at that time except for a handful of other drivers,” Jen said, “so usually I can be a little more laid back.”

    The moment she first observed lights in the distance ahead of her, she was aware that something about their appearance seemed unusual.

    “[A]bout halfway down the road, going East, I saw a dark, bright blue light,” she recalled. “I thought it was weird but thought I’d just watch it until I got to work and see what happens. Well, the single light, turned into two dark blue bright lights.

    Many observers would probably agree that the appearance of such lights would seem unusual, namely because blue is not a color that falls within FAA regulations.

    “As it got closer,” Jen continued, “I could tell that they were attached to the same craft but one was in front and the other was slightly behind.

    “Then a third dark blue bright light appeared at the tail end of the craft, as well as white blinking lights on what would be the wings. Now, I didn’t see an outline of any shape of the craft which held the lights, but you could tell they were all a part of the same object.”

    Despite never seeing the shape of the plane or object to which they were attached, this report is curious since the coloration does not conform to any known aircraft lighting patterns. Add to that, as mentioned before, the fact that it falls outside of legal lighting for aircraft around the world, and it seems highly unlikely that this would have been any kind of conventional aircraft.

    “I was sure it had to be some plane,” Jen added, “but it wasn’t flying high enough, (it was half the height of the mountains) and it was flying directly south, not trying to gain any altitude but not coming down like to land.

    “I really wouldn’t have given it much thought but it was unlike any plane I’ve ever seen,” she concluded, “and apparently it’s illegal to fly with blue headlights in a plane.”

    The white blinking lights oriented near the wingtips that Jen described seeing do match the position of strobe lights that appear on many conventional aircraft. However, according to federal aviation regulations part 25, pertaining to “regulations for transport aircraft,” section 1385 states that:

    (b) Forward position lights. Forward position lights must consist of a red and a green light spaced laterally as far apart as practicable and installed forward on the airplane so that, with the airplane in the normal flying position, the red light is on the left side and the green light is on the right side. Each light must be approved.

    Based on Jen’s description, in addition to there only being blue lights observable on the aircraft she witnessed, there did not appear to be any green or red position lights visible.

    This presents a problem, since according to federal aviation regulations part 121, section 323, “No person may operate an airplane at night under this part unless it is equipped with the following instruments and equipment in addition to those required by §§121.305 through 121.321 and 121.803,” after which the first item listed under item “a” is position lights.

    So what was the aircraft Jen observed in the early morning hours during her commute to work? It’s anybody’s guess, but it would seem pretty clear that its lighting pattern doesn’t seem to match any known aircraft and their operations under FAA regulations… and that, by definition, would make it an unidentified flying object, whatever its actual purpose and origins might have been.

    https://mysteriousuniverse.org/ }

    06-04-2020 om 21:09 geschreven door peter  

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    Categorie:MYSTERIES ( Fr, Nl, E)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.New Evidence Shows Neanderthals and Humans Were Having Frequent ‘Relations’

    New Evidence Shows Neanderthals and Humans Were Having Frequent ‘Relations’

    For a long time, calling someone a “Neanderthal” was considered an insult to their intelligence. No long. A news study has turned it around and now calling someone a Neanderthal is a compliment … to their libido! Is humanity the by-product of Neanderthals doing more than just walking erect?

    “A new study supports this notion, finding that people in Eurasia today have genetic material linked to Neanderthals from the Altai mountains in modern-day Siberia.”

    That may not seem like a big deal since scientists have found Neanderthal DNA in the human genome, but that was in Eurasians and the Neanderthals were linked to remains found in the Vindija cave in Croatia. Omer Gokcumen, a University of Buffalo biologist, reveals in a new study published in the journal Genetics that his team of researchers had found Neanderthal DNA in Eurasians that traces back instead to the Altai mountains in what is now Siberia. How did this happen … scientifically speaking, of course?

    “The picture in my mind now is we have all these archaic hominin populations in Europe, in Asia, in Siberia, in Africa. For one reason or another, the ancestors of modern humans in Africa start expanding in population, and as they expand their range, they meet with these other hominins and absorb their DNA, if you will.”

    “Absorbed their DNA.” That a scientifically nice way of saying they had sex that resulted in babies. However, the phrasing of Gokcumen’s revelation raises an interesting question: were the ancestors of modern humans really horny or were the Neanderthals? Conversely, were the early humans really sexy or were the Neanderthals? Or was prehistoric Eurasia just one big free-love orgy between homo sapiens and Neanderthals … and what about the Denisovans?

    “The story is not as neat as it was before. Every single ancient genome that is sequenced seems to create a completely new perspective in our understanding of human evolution, and every new genome that’s sequenced in the future may completely change the story again.”

    The research concludes that each interbreeding population was different. The amount of “absorbing of DNA” varied based on geography and time period. Were the early Neanderthals sexier? Did the later ones feel these invading humans were taking advantage of them? More research is obviously necessary and it’s a foregone conclusion that more Neanderthal-human ‘absorbing’ will be found.

    Perhaps the answer to all of these questions will boil down to finding out which one paid for dinner.

    https://mysteriousuniverse.org/ }

    06-04-2020 om 20:42 geschreven door peter  

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    Categorie:Diversen (Eng, NL en Fr)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Ancient Pyramids On Mars Recorded By NASA Rover, Photos, UFO Sighting News.

    Ancient Pyramids On Mars Recorded By NASA Rover, Photos, UFO Sighting News.

    Date of discovery: April 5, 2020
    Location of discovery: Mars Sol 23
    Source photo: 
    I found two ancient pyramids on Mars today in a NASA photo. Both pyramids are close to one anther and they both have entrances facing the NASA rover camera. They look ancient but has survived the test of time. Both pyramids are about three meters tall by five meters wide. A smaller species than us humans for sure, but nevertheless...an intelligent species. 
    Scott C. Waring - Taiwan 

    Videos, by peter2011

    https://www.etdatabase.com/ }

    06-04-2020 om 18:28 geschreven door peter  

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    Categorie:Ruins, strange artifacts on other planets, moons, ed ( Fr, EN, NL )
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Ancient Tech On Surface Of Mars, UFO Sighting News Photos.

    Ancient Tech On Surface Of Mars, UFO Sighting News Photos.

    Date of discovery: April 5, 2020
    Location of discovery: Mars, Sol 3
    Source: 
    I found this strange part of a structure in a Mars sol 3 photo. The photo is on the NASA site Midnightplanets, an official site run by scientists working at NASA. 
     
    The object I found has smooth edges and is rounded at its ends, almost like part of a wing from an aircraft that has been perfectly sliced open. The object is too smooth and too perfectly proportioned to be a natural. There is a rock like substance that appears to have flowed out of the inside of the wing and solidified into a solid hard substance. 
     
    This is absolute proof that an intelligent civilization once thrived on Mars. 
    Scott C. Waring 

    https://www.etdatabase.com/ }

    06-04-2020 om 18:09 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:Ruins, strange artifacts on other planets, moons, ed ( Fr, EN, NL )
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.UFO near Moon? Montréal, France – 26-Mar-2020

    UFO near Moon? Montréal, France – 26-Mar-2020

    These three cylindrical UFOs were filmed flying near the Moon on 26th March 2020. Filmed from Montreal, France.

    Author’s report: 

    I regularly film the Moon by day, at the time of the first and last crescent. I think that if hidden activity must be visible on the Moon, it is at this moment, when the population does not observe it, because it is day and the first or last crescent makes it more discreet in the sky.

    https://www.latest-ufo-sightings.net/ }

    06-04-2020 om 17:11 geschreven door peter  

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    Categorie:LATEST ( UFO ) VIDEO NEWS ( ENG)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Latest UFO Sightings Reports – April 2020

    Latest UFO Sightings Reports – April 2020

    Latest UFO sightings that were submitted through our report page and Facebook page.

    Plymouth, UK – 4. April 2020
    Hey, I’m not sure what I saw tonight above Plymouth here in the UK, I was wondering if you had any ideas? This was taken tonight at 8:30pm our time,
    the object slowed down then began to move up and down, then accelerated hard beforing vanishing into thin air.. The light to the top left is thought
    to be the iss, the other object was much lower, lower than air craft flight seemingly.. Not moving in a straight line..

    United States – 2nd April 2020
    Don’t know what this was. From 38 to 45 seconds you can see i lost it and then it came at me. In tomahawk Wisconsin corner of hwy 8 and cty rd L

    Evansville, Indiana – 30 March 2020
    I seen five star like objects moving in East- Western direction in Evansville, Indiana at around 9 pm tonight. They were moving slowly and in a unison pattern. I video taped it, but it is not visible on my phone. You can kind of make out a few of them.

    Victoria, Australia – 30 March 2020
    Last night narre warren South was actually two of them too far apart to capture both for a good 45 mins . I noticed it just before midnight .

    Boise, Idaho – 3/26/2020
    Starting at approximately 9:20pm Mountain Time I witnessed 30-40 lights that were clearly in formation and on the same trajectory pass overhead. When I saw the first object I thought it was the International Space Station but the ISS did not pass over until 10:14pm. Then multiple similar lights kept following the first. Each was spaced out almost perfectly 15-20 seconds behind the preceding one. The path was from SW to NE. There was no sound, and no flashing strobes. The Flight Aware app did not show them as airplanes, and no satellite tracker had that many object listed. They all seemed to be in a line and traveled a similar speed as the ISS. I called several friends and family in town who stepped outside and also saw the procession.

    London, UK – 26 March 2020
    There are cigar shaped craft flying over north london right now. Both myself and my brother have seen a pulsating light and when we lifted the phone to record it vanished and on the next night we saw it again and I flashed a torch back towards it and it vanished again we also saw five what look like stars crusing around, these are on a daily basis but usually only one maybe two.

    Portugal – 25 March 2020

    Johnson City NY – 8:30p to 9:30 pm 03/25/20 close up encounter
    Out my upper eastern bedroom window. I saw a huge close up of a:
    Hovering Triangle Oblong orange lites & red round lites on 3 points. Not more than 100 ft from window & not more than 50 ft above neighbour’s house.
    It was at least 75ft W & 5 ft tall. I dont really care if people belive me or not but would appriciate it if you would let me know if you heard from othets of this in Johnson City NY Broome Co. or not?
    Also changed size and speed at least 3 times during hour sighting.

    Nelson county KY – March 21, 2020
    Bright round objects in perfect formation headed from west to east bound – watched for about 10 minutes in amazement. These were not planes. Each were about 10 seconds apart. Same intervals each disappearing in the same area. Have never seen anything like this before. Two of us saw the same thing. One UPS plane flew under these objects / lights appearing to almost collide. You could hear the plane but no sound from the white lights. The white lights looked like the size & brightness of a star. Each moving swift across the sky with the same exact distance between them and they just kept coming and then each disappeared one by one as they reached the same area in the sky – all at once they each faded away in the same manner. This was something to see! We were so amazed – we didn’t go to get our digital camera. By the time we thought about it and went in to get the camera – went back out and all activity stopped. We estimate there was atleast 1 every 10 seconds. We watched long enough to see at least 40. My husband saw this first just happened to be outside and looked up – called me to come out of the house and look so I did. I would not have believed otherwise. Wanted to report! This siting is in Nelson County, KY and was 9:20PM – 9:30PM. Curious if anyone else has seen this! Not sure where else to report.

    Calgary, Canada – 20 March 2020
    Hey. My friend and I and our kids saw something unexplainable flying over Calgary airports control tower on March 20th around 7-8pm

    Tagum, Philippines – 17 March 2020
    Hi, this is the photo my neice took last night 0400 in Tagum in Philippines. They said it was so bright amd makes eerie noise above the rooves of their houses. All of tjem were surprised to see a strange phenomena and mostly had never experienced such. None of them thought of taking video coz 4am is too early to wake up. But since they were awaken by the noise, they just took photo and went to sleep again.

    Qaulicum Beach, BC Canada – March 14 2020
    Last night I was witness to a UFO sighting here in Qualicum Beach , BC.
    It was about 10:30 pm and my daughter and I where on our outside hotter when all of a sudden we saw the most amazing and longest shooting star we have ever seen, after seeing this, we started talking about UFO’s and my many experiences in Mexico before. After a few minutes she went indoors and I remained in the hotter, just lying down looking at the beautiful night sky full of stars… it was then that I saw a huge triangular shape, almost transparent, see- through , and it had small triangles within, it must have been at least 100 meters of the ground and it was slow and steady, I saw it fly above me and then just flew away… I felt mesmerized and amazed, I felt a little bit of fear , but it quickly went away ,and after a few more minutes I came back indoors and told my wife and daughter about the incident.
    I just wanted to leave some kind of report of my experience last night, thank you for taking the time to read this.
    I have had many more experiences with UFO’s in Mexico, but this was my first here in Canada after 9 years living here.
    Now , I know they’re here , for some reason… this is very interesting!
    location Qualicum Beach BC
    date March 14th 2020
    time Aprox. 10:40 pm
    duration of the sighting 15 sec.
    behaviour of the object(s) Flying low & steady
    colour of the object(s) Transparent
    shape of the object(s) Triangular
    any souds heard None
    weather conditions Clear night 4 C
    and how you lost sight of the object(s) It flew over head and kept on going on the same direction

    United States – 14 March 2020
    Saw these 3 fireballs seemingly floating in triangle formation. Caught two in camera then the other two went lights out. Five minutes later an obvious helicopter came circling by that route

    London, UK – 11 March 2020
    Hi just thought I would share this with you. North London happened tonight. Was there for about 10 mins. Went back about 30 mins later and it was gone.

    11th of ‎March 2020 at Newton Abbot Devon England
    I had an incredible signing today. I was in the back garden sky watching and I had just zoomed in on a clear blue part of the sky with my Nikon P900 camera, when all of a sudden a saucer shaped craft flew directly into view. I was looking through the viewfinder at the time and I was very surprised by what I saw. I really wasn’t expecting to see any UFOs that close up. I was totally amazed. I could see that the surface of the saucer was very dirty looking like it was covered in soot, but what really caught my eye was the fact that I could see some sort of violet coloured energy being discharged from the back of the saucer shaped craft as it moved forwards through the air. I had never seen anything quite like it before. I could hardly believe what I was seeing… I quickly took a photograph of the saucer while moving the camera to follow the saucer as it flew across the sky. I was trying my best to hold the camera steady but it was almost impossible at such high magnification. The saucer then increased it’s speed and unfortunately I lost sight of it. I tried to reacquire the saucer in the viewfinder of the camera but it was no good it was gone. The saucer had been at a very high altitude and I definitely wouldn’t of seen it without my Nikon P900 camera. It was just sheer luck that I was already zoomed in to that part of the sky when the saucer had flown in to view. What on earth could this strange unidentified saucer craft be? The photograph was taken at 10:58 AM on the 11th of ‎March 2020 at Newton Abbot Devon England. All the best John.

    • 1. Saucer Discharging Energy Original

    Pass-A-Grille, Florida – 27 November 2019
    I took this video on my iPhone on Nov 27 at Pass-A-Grille, which is on the south end of St Petersburg Beach in FL. This is the second red object I saw, I watched the first one without taking out my phone, then saw this one and took the video. Sorry it is so poor quality. Each red object appears as it it took off maybe from the Clearwater beach area (you can see for beach for miles at the end where I was), and pretty much followed the beach toward my location, like it were a helicopter flying low…but it was going pretty fast. Then, nearly right in front of me, each too a sharp right turn, traveling out toward the open gulf, rapidly disappearing, no sound. You can see the object seems to be pulsating or rotating and it was red. That’s it. Steve

    Panama – 2013
    I looked through your site and did not see a UFO like the one I photographed quite by chance in The Republic of Panama 2013. It had to be enlarged of course but it is a UFO.

    https://www.latest-ufo-sightings.net/ }

    06-04-2020 om 02:14 geschreven door peter  

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    Categorie:LATEST ( UFO ) VIDEO NEWS ( ENG)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.UFOs Show Up for History Channel's Livestream of Skinwalker Ranch

    UFOs Show Up for History Channel's Livestream of Skinwalker Ranch

    A night before the History Channel premier of "The Secret of Skinwalker Ranch," viewers were encouraged to go to the network's YouTube page to watch a 12-hour live surveillance of the ranch.

    I needed little encouraging.

    Although I wasn't able to glue my eyes to the livestream for the full 12 hours (as I'm pretty sure that's not humanely possibly), I watched a lot of the livestream back later, skipping forward and backward through the hours, trying to find something intriguing.

    I didn't find any gray aliens, shape-shifting witches, or Bigfoot. But I did find some UFOs.

    I also found comments and reports from others who'd watched the livestream, and it seemed that I wasn't alone. Others had seen things, too! Lots of things!

    In fact, so many things, that I don't have the time to share it all in this story today. So, here are just a handful of the UFOs caught on camera over Skinwalker Ranch the night of the History Channel livestream (March 30th, 2020)... do you think you can explain these videos? Were you watching the livestream as well? Did you see anything weird? Comment below!

    Star-like object slowly descends behind pole:

    Start watching at the 6:28:49 mark in the video and see screenshots below:

    Bright spherical light with green triangle overtakes camera:

    • (Possible explanation: a lens flare caused by the camera being adjusted...or a UFO shining its lights, of course.)

    Start watching at the 3:07:10 mark in the video and see screenshots below:

    Strange sounds can be heard before a single bright flash of light:

    • (Possible explanation: thunderstorm...or an alien spaceship, naturally.)

    Start watching at the 3:44:59 mark in the video and see screenshots below (thanks to Twitter user, e2_Hawkeye, for this one):

    If you missed the 12-hour livestream, it's still available for playback. You can also catch the History Channel series "The Secret of Skinwalker Ranch" Tuesday nights at 10/9 central.

    https://www.theweirdufoshow.com/ }

    06-04-2020 om 01:56 geschreven door peter  

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    Categorie:MYSTERIES ( Fr, Nl, E)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Early Mars Had Multiple Water Sources, New Study Shows

    Early Mars Had Multiple Water Sources, New Study Shows

    An analysis of two Martian meteorites — Northwest Africa (NWA) 7034 and Allan Hills (ALH) 84001 — shows that Mars likely received water from at least two vastly different sources early in its history; the variability implies that Mars, unlike Earth and the Moon, never had a global ocean of magma.

    This computer-generated view depicts part of Mars at the boundary between darkness and daylight. At top right is NWA 7034. Image credit: NASA / JPL-Caltech / University of New Mexico / Sci-News.com.

    This computer-generated view depicts part of Mars at the boundary between darkness and daylight. At top right is NWA 7034.

    Image credit: NASA / JPL-Caltech / University of New Mexico / Sci-News.com.

    “These two different sources of water in Mars’ interior might be telling us something about the kinds of objects that were available to coalesce into the inner, rocky planets,” said Dr. Jessica Barnes, a researcher at NASA’s Johnson Space Center and the Lunar and Planetary Laboratory at the University of Arizona.

    “Two distinct planetesimals with vastly different water contents could have collided and never fully mixed. This context is also important for understanding the past habitability and astrobiology of Mars.”

    Dr. Barnes and colleagues were able to piece together Mars’ water history by looking for clues in two isotopes of hydrogen: light hydrogen and deuterium.

    The researchers analyzed samples they knew were originated from the Martian crust: NWA 7034 (also known as the Black Beauty meteorite) and ALH 84001 meteorites.

    Black Beauty was especially helpful because it’s a mashup of surface material from many different points in Mars’ history.

    “This allowed us to form an idea of what Mars’ crust looked like over several billions of years,” Dr. Barnes said.

    The isotopic ratios of the meteorite samples fell about midway between the value for Earth rocks and Mars’ atmosphere.

    When the team’s findings were compared with previous studies, including results from NASA’s Curiosity rover, it seems that this was the case for most of Mars’ 4 billion-plus-year history.

    “We thought, ok this is interesting, but also kind of weird. How do we explain this dichotomy where the Martian atmosphere is being fractionated, but the crust is basically staying the same over geological time?” Dr. Barnes said.

    The scientists also grappled with trying to explain why the crust seemed so different from the Martian mantle, the rock later which lies below.

    “If you try and explain this fairly constant isotopic ratio of Mars’ crust, you really can’t use the atmosphere to do that. But we know how crusts are formed. They’re formed from molten material from the interior that solidifies on the surface,” Dr. Barnes said.

    “The prevailing hypothesis before we started this work was that the interior of Mars was more Earthlike and unfractionated, and so the variability in hydrogen isotope ratios within Martian samples was due to either terrestrial contamination or atmospheric implantation as it made its way off Mars.”

    Illustration showing the present-day hydrogen reservoirs in and on Mars. The mass fractions (pie chart) of Martian water are based on the mass of water in the bulk crust (C), the mantle (M) and the combined inventory (A) of the atmosphere and polar ice deposits (PID). The mantle mass fraction is the combination of depleted shergottites (DS) and enriched shergottites (ES). Image credit: Barnes et al, doi: 10.1038/s41561-020-0552-y.

    Illustration showing the present-day hydrogen reservoirs in and on Mars. The mass fractions (pie chart) of Martian water are based on the mass of water in the bulk crust (C), the mantle (M) and the combined inventory (A) of the atmosphere and polar ice deposits (PID). The mantle mass fraction is the combination of depleted shergottites (DS) and enriched shergottites (ES).

    Image credit: Barnes et al, doi: 10.1038/s41561-020-0552-y.

    The idea that Mars’ interior was Earthlike in composition came from one study of a Martian meteorite thought to have originated from the mantle — the interior between the planet’s core and its surface crust.

    “However, Martian meteorites basically plot all over the place, and so trying to figure out what these samples are actually telling us about water in the mantle of Mars has historically been a challenge,” Dr. Barnes said.

    “The fact that our data for the crust was so different prompted us to go back through the scientific literature and scrutinize the data.”

    The study authors found that two geochemically different types of Martian volcanic rocks — enriched shergottites and depleted shergottites — contain water with different hydrogen isotope ratios.

    Enriched shergottites contain more deuterium than the depleted shergottites, which are more Earth-like, they found.

    “It turns out that if you mix different proportions of hydrogen from these two kinds of shergottites, you can get the crustal value,” Dr. Barnes said.

    “We think that the shergottites are recording the signatures of two different hydrogen — and by extension, water — reservoirs within Mars. The stark difference hints to them that more than one source might have contributed water to Mars and that Mars did not have a global magma ocean.”

    • The study was published in the journal Nature Geoscience.

    _____

    J.J. Barnes et al. Multiple early-formed water reservoirs in the interior of Mars. Nat. Geosci, published March 30, 2020; doi: 10.1038/s41561-020-0552-y

    { http://www.sci-news.com/ }

    06-04-2020 om 01:41 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Homo erectus Existed 200,000 Years Earlier than Previously Thought

    Homo erectus Existed 200,000 Years Earlier than Previously Thought

    An international team of paleoanthropologists has unearthed a 2-million-year-old skull of Homo erectus, the first of our ancestors to be nearly human-like in their anatomy and aspects of their behavior, in the fossil-rich Drimolen cave system north of Johannesburg, South Africa.

    This is an artist’s reconstruction of female Homo erectus from Dmanisi, Georgia. Image credit: Elisabeth Daynes, via tabula.ge.

    This is an artist’s reconstruction of female Homo erectus from Dmanisi, Georgia. Image credit: Elisabeth Daynes, via tabula.ge.

    Homo erectus is one of our direct human ancestors and is best known for migrating out of Africa into the rest of the world.

    They walked upright and were a more human-like species than the other hominins found in the Cradle of Humankind.

    Homo erectus had shorter arms and longer legs. They could walk and run for longer distances over the African grasslands than the others.

    “The Homo erectus skull we found shows its brain was only slightly smaller than other examples of adult Homo erectus,” said Professor Andy Herries, a researcher at La Trobe University and the University of Johannesburg and corresponding author of a paper published in the journal Science.

    “It samples a part of human evolutionary history when our ancestors were walking fully upright, making stone tools, starting to emigrate out of Africa, but before they had developed large brains.”

    The 2-million-year-old fossil, designated DNH 134, was reconstructed from more than 150 individual fragments recovered from the Drimolen site over a five-year period.

    “Before we found DNH 134, we knew that the oldest Homo erectus in the world was from Dmanisi in Georgia dating to 1.8 million years ago,” said co-author Stephanie Baker, a Ph.D. candidate at the University of Johannesburg.

    “The newly-discovered fossil demonstrates that Homo erectus, our direct ancestor, clearly evolved in Africa,” added co-author Jesse Martin, a Ph.D. student at La Trobe University.

    The DNH 134 Homo erectus cranium from South Africa. Image credit: Jesse Martin / Reanud Joannes-Boyau / Andy I. R. Herries.

    The DNH 134 Homo erectus cranium from South Africa.

    Image credit: Jesse Martin / Reanud Joannes-Boyau / Andy I. R. Herries.

    The age of the DNH 134 skullcap shows something else — that at least three hominins lived in southern Africa at the same time.

    “Unlike the world today, where we are the only human species, two million years ago our direct ancestor was not alone,” Professor Herries said.

    “We can now say Homo erectus shared the landscape with two other types of humans in South Africa, Paranthropus robustus and Australopithecus.”

    “This suggests that one of these other human species, Australopithecus sediba, may not have been the direct ancestor of Homo erectus, or us, as previously hypothesized.”

    “The new crania offered an unparalleled insight into how three different human species, with quite different adaptations, shared a changing environment together,” said co-author Angeline Leece, a Ph.D. student at La Trobe University.

    “The discovery raises some intriguing questions about how these three unique species lived and survived on the landscape,” said co-author Dr. Justin Adams, a researcher at Monash University.

    “One of the questions that interests us is what role changing habitats, resources, and the unique biological adaptations of early Homo erectus may have played in the eventual extinction of Australopithecus sediba in South Africa.”

    “Similar trends are also seen in other mammal species at this time. For example, there are more than one species of false saber-tooth cat, Dinofelis, at the site — one of which became extinct after two million years.”

    “Our data reinforces the fact that South Africa represented a truly unique mixture of evolutionary lineages — a blended community of ancient and modern mammal species that was transitioning as climates and ecosystems changed.”

    _____

    • Andy I.R. Herries et al. 2020. Contemporaneity of AustralopithecusParanthropus, and early Homo erectus in South Africa. Science 368 (6486): eaaw7293; doi: 10.1126/science.aaw7293

     

    { http://www.sci-news.com/ }

    06-04-2020 om 00:55 geschreven door peter  

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    Categorie:ARCHEOLOGIE ( E, Nl, Fr )
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.The Military Spent $22 Million Tracking UFOs: Here's What They Found

    The Military Spent $22 Million Tracking UFOs: Here's What They Found

    The Pentagon UFO-hunting mission, the Advanced Aerospace Threat Identification Program, is still partially classified.

    • Key point: Some assert human errors, but these pilots say this is what they saw...

    By now you’ve probably read the New York Times article detailing a UFO research program run by the Pentagon which received $22 million — a tiny amount by Defense Department standards — from 2007 to at least 2012. The disclosure of the program is the biggest such reveal since Project Blue Book of the 1950s and 1960s and the French government’s 1999 COMETA Report.

    If that wasn’t strange enough, the article included declassified footage from a U.S. Navy F/A-18F Super Hornet fighter’s AN/ASQ-228 sensor display as it trailed a still-unidentified flying object over the Pacific near San Diego on Nov. 14, 2004.

    In the footage, the Super Hornet pilot, while traveling at 252 knots at nearly 20,000 feet, switched between his display’s infrared and visual modes as the sensor tried to lock onto the blurry, oblong or pill-shaped object. The flying object appeared white in IR mode, and black in TV mode — indicating that whatever it was, the sensor had picked up on the object’s emission, temperature or reflection.

    The video comes from the same incident when Cmdr. David Fravor, a veteran Navy pilot assigned to the USS Nimitz carrier fighter squadron VFA-41 Black Aces, was on a training mission off San Diego. “It was a real object, it exists and I saw it,” Fravor told the Washington Post. Telling the paper that he believes it was “not from the Earth.”


    During an exercise, commanders ordered Fravor to intercept an object that was appearing at 80,000 feet — above the range of Ticonderoga-class cruiser USS Princeton’s SPY-1 air-search radar — before dropping suddenly to 20,000 feet. “Officials told they had been tracking a couple dozen of these objects for a few weeks,” the paper reported.

    The story that followed has circulated in the military aviation world and fighter community for several years, including this write-up by former Navy F-14A Tomcat pilot Paco Chierici at Fighter Sweep. With orders to intercept the object, Fravor in his jet — callsign FASTEAGLE 01 — headed toward with aid from an E-2 Hawkeye early warning and control plane.

    The Hawkeye’s sensors, however, couldn’t detect the object and vector him toward it, so Princeton directed FASTEAGLE 01 and Fravor’s wingman, FASETEAGLE 02 to the location, and even asked Fravor whether he was carrying weapons — he wasn’t. He just had two training missiles. Below the jets, Fravor saw whitewater sloshing in the blue ocean.

    All four aircrew were eyes out from this point forward. The first unusual indication Dave picked up was the area of whitewater on the surface that Cheeks was looking at over his shoulder as he flew away. He remembers thinking it was about the size of a 737 and maybe the contact they had been vectored on had been an airliner that had just crashed. He maneuvered his F-18 lower to get a better look. As he was descending through about 20K he was startled by the sight of a white object that was moving about just over the frothing water. It was all white, featureless, oblong and making minor lateral movements while staying at a consistent low altitude over the disk of turbulent water.

    […]

    In his debrief comments, Dave, his WSO and the two other crews stated the object had initially been hovering like a Harrier. They described it as uniformly white, about 46 feet long (roughly fighter-sized), having a discernible midline horizontal axis (like a fuselage) but having no visible windows, nacelles, wings or propulsion systems.

    There was no apparent exhaust or rotor wash, either. The pill-shaped object then “oriented one of its skinny ends towards him,” and rose in a “right 2-circle flow” — fighter speak for when each aircraft have their noses pointed at each other’s tails. The object then accelerated away at “multi-Mach” speed.

    The video of the AN/ASQ-228 sensor display occurred later in the day with a different set of fighters. The object at this point appeared stationary before taking off.

    This is consistent with a U.S. Navy report obtained by To The Stars Academy of Arts and Science, a UFO research company which published the footage. The Navy pilots, apparently, first believed the object could have been a classified missile test from a submarine. The Navy report cited a source who indicated the object maneuvered in a manner “that seemed to defy the laws of physics” and “‘tumbled’ into nonsensical angles that made any engagement by the F-18 impossible.”

    So what was it? A secret U.S. test project? A classified drone or hypersonic weapon? A maneuverable reentry vehicle or something like DARPA’s Falcon Project? Naval Air Systems Command, which tests airborne weapons, has 36,000 square miles of controlled sea and airspace off the Southern Californian coast. And the Falcon Project’s Hypersonic Technology Vehicle 2 has reached Mach 22 — albeit six years after the 2004 object sighting in the Pacific.

    Or perhaps it was an elaborate hoax, or a software or sensor error. Maybe an atmospheric disturbance? Or let’s say it was an alien spacecraft powered by technology impossible for our tiny primate brains to understand. I hope it’s the last one, but I’m not counting on it. Your guess is as good as mine.

    Eyewitnesses, even fighter pilots, are prone to human error. Pilots also know how aircraft operate, and the belief that there is something unusual in the skies is more common in that community than you might assume. Fravor certainly believes what he saw, and many fighter pilots believe him.

    Or perhaps it was an elaborate hoax, or a software or sensor error. Maybe an atmospheric disturbance? Or let’s say it was an alien spacecraft powered by technology impossible for our tiny primate brains to understand. I hope it’s the last one, but I’m not counting on it. Your guess is as good as mine.

    Eyewitnesses, even fighter pilots, are prone to human error. Pilots also know how aircraft operate, and the belief that there is something unusual in the skies is more common in that community than you might assume. Fravor certainly believes what he saw, and many fighter pilots believe him.

    I was on board the USS Princeton (2001-2005) when this all went down. We actually went to GQ (General Quarters) for about 4 hours as all if this was going down. I’ve been telling everyone about this even, but have gotten the usual “yeah right” look when I tell them about it. I saw the video after it happened, but didn’t think that it would somehow make it’s way to the public, considering all of the “security” that surrounded the issue.

    Crazy how the world turns, isn’t it?!

    Thank you for giving this event life! I no longer look like a tin foil hat wearing idiot!

    • This article first appeared several years ago.

    Image: Reuters.

    https://nationalinterest.org/ }

    06-04-2020 om 00:43 geschreven door peter  

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    Categorie:ASTRONOMIE / RUIMTEVAART
    05-04-2020
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.The UFO Sightings That Launched 'Men in Black' Mythology

    The UFO Sightings That Launched 'Men in Black' Mythology

    In all of their different incarnations, the Men in Black usually have one main purpose: to muzzle witnesses of strange, paranormal phenomena.

    It's possible that the story of the Men in Black, the mysterious figures that would become the subject of fascination in UFO conspiracy circles and eventually break into mainstream popular culture, can be traced back to one day: June 27, 1947. It's quite possible that it all started with a man, a boy and a dog on a boat.

    As the story goes, Harold Dahl was on a conservation mission on the Puget Sound near the eastern shore of Washington’s Maury Island, gathering logs, when he saw six donut-shaped obstacles hovering about a half a mile above his boat. Before long, one of them fell nearly 1,500 feet, followed by raining, metallic debris, some of which hit Dahl’s son, Charles, on his arm, as well as the family dog, who didn’t survive the ordeal. Dahl was able to take some pictures of the aircraft with his camera, which he later showed to his supervisor, Fred Crisman. A skeptical Crisman went back to the scene to look for himself and saw a strange aircraft with his own eyes.

    The following morning, Dahl was visited by a man in a black suit. They end up at a local diner, where the man was able to recount in extraordinary detail what Dahl had just experienced. “What I have said is proof to you that I know a great deal more about this experience of yours than you will want to believe,” the man said, according to author Gray Barker’s 1956 book They Knew Too Much About Flying Saucers.

    Dahl was told not to speak of the incident. If he did, bad things would happen.

    The supposed events of Maury Island have continued to fuel conspiracy theories to this day, even though a U.S. government investigation deemed it a hoax after Dahl and Crimson later admitted as much. In particular, the mention of the man in the black suit would evolve into a key obsession for UFO enthusiasts and spread into American popular culture, thanks to a comic-book series and a blockbuster movie trilogy.

    The cover of Gray Barker's book, They Knew Too Much About Flying Saucers. 

    In all of their different incarnations, the Men in Black (MIB) usually have one main purpose: to muzzle witnesses of strange, paranormal phenomena. They almost always wear black suits and hats with dark sunglasses, drive black cars and arrive in groups of two or three. Some describe them as one would an FBI agent, while others recall the MIB as having strange appearances, sometimes with supernatural features like glowing eyes and strange complexions.

    So how did we get from Harold Dahl to Will Smith?

    "The transformation of the story from a first press report to a folkloric tale to a comic book and now to a film illustrates how the myth is transformed,” wrote Phil Patton in The New York Times around the time the first Men in Black movie was released in 1997. “That process is not unlike the children's game of 'telephone' or what the literary critic Harold Bloom calls 'innovation by misinterpretation.' "

    Sticking with the telephone analogy, the first call was made to Kenneth Arnold, a pilot who had his own alleged UFO sighting on June 24, 1947 near Mt. Rainier, Washington. Though it happened three days after the Maury Island incident, it was the first widely reported sighting and it “touched off the saucer sensation,” as was written in a 1949 government report on “Flying Saucers.”

    The report states that Dahl and Crimson reached out to a Chicago magazine in an attempt to sell their story, and the magazine editor then contacted Arnold, hoping he could help verify their account. Arnold then “summoned two officers of Army A-2 Intelligence to aid in the investigation of Dahl and Crisman's claim,” according to the report.

    In July 1947, two Army A-2 Intelligence officers came to investigate. After leaving in their B-25 the next day, the plane caught fire and crashed, killing both officers and doing nothing to quiet UFO conspiracists.

    But the Maury Island story gained little notice in the UFO community until Barker’s 1956 book, in which he wrote of his “file on the Maury Island case” that largely consisted of the writings by Ray Palmer, the Chicago magazine editor referred to in the government’s report. Barker went on to connect the dots between “the man, who wore a black suit” who took Dahl to breakfast and three similarly dressed men who allegedly visited a young UFO enthusiast named Albert K. Bender in 1953.

    It was Bender who “almost single-handedly ushered in the plague of the Men in Black—just as Arnold inaugurated the era of the UFO,” Ufologist Nick Redfern wrote in his book The Real Men in Black. But it was Barker’s book that told Bender’s story, thus introducing the concept of the MIB to a much wider audience.

    (The telephone-game analogy is still holding.)

    Kenneth Arnold, center, looks at a photo of an unidentified flying object they sighted while en route to Seattle, Washington with pilots E.J. Smith and Ralph E. Stevens. 

    Kenneth Arnold, center, looks at a photo of an unidentified flying object they sighted while en route to Seattle, Washington with pilots E.J. Smith and Ralph E. Stevens. 

    “It still has an important legacy,” said Robert Sheaffer, a UFO researcher. “Before its publication, nobody outside a very narrow group of subscribers to flying-saucer newsletters had ever heard of Bender, or his MIB.”

    Barker described Bender’s visitors as: “Three men in black suits with threatening expressions on their faces. Three men who walk in on you and make certain demands. Three men who know that you know what the saucers really are!”

    Bender, in his own 1962 book Flying Saucers and the Three Men, described the MIB in much more frightening language.

    “They floated about a foot off the floor… They looked like clergymen, but wore hats similar to Homburg style. The faces were not clearly discernible, for the hats partly hid and shaded them… The eyes of all three figures suddenly lit up like flashlight bulbs… They seemed to burn into my very soul as the pains above my eyes became almost unbearable,” wrote Bender.

    Barker would go on to write several more books related to the paranormal and UFOs, including 1970’s The Silver Bridge, which helped spread the story of another popular paranormal figure, the creature known as Mothman. But how much of his writing was done in good faith has been called into question by many in the UFO-research community.

    “Barker made it clear to me that he did not take the MIB or Mothman very seriously,” says Sheaffer, who corresponded with Barker on occasion. “However, he believed that there was still 'something mysterious' about the whole UFO and paranormal thing.”

    Regardless of Barker’s motives, countless MIB encounters have been reported since They Knew Too Much was published nearly 60 years ago, and at least one more movie is on the way.

    https://www.history.com/ }

    05-04-2020 om 23:42 geschreven door peter  

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    Categorie:MYSTERIES ( Fr, Nl, E)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Did Mercury once have the ingredients for life?

    Did Mercury once have the ingredients for life?

    Chelsea Gohd

    It's possible that Mercury once held the ingredients for life. 

    In 1974, NASA's Mariner 10 probe flew by Mercury and observed a cracked, cratered landscape. Now, according to one new theory, Mercury's fractured "chaotic terrain" could've been formed by volatiles — elements and compounds that can easily jump from a gas to a liquid or solid — under the surface. 

    Volatiles, a chemical category that includes water, are essential for sparking and supporting life as we know it here on Earth. So, their potential presence on Mercury is an intriguing development. The study, led by Alexis P. Rodriguez, a researcher at the Planetary Science Institute in Arizona, took a closer look at Mercury'schaotic terrain and the possibility that volatiles once shaped a planet with surface temperatures hot enough to melt lead, a planet that has forever been thought of as "completely inhospitable." 

    The planet Mercury from March 2020.

    © Provided by Space 

    The planet Mercury from March 2020.

    What cracked Mercury?

    For decades, scientists have studied Mercury's chaotic terrain — a landscape made up of the planet's cracked and ragged surface, complete with jagged, broken-up rocks, sharp peaks and craters. 

    Mars has chaotic terrain as well, but the Red Planet features connect much more obviously to outflow channels on the Martian surface. With no such channels on Mercury, researchers instead tied the terrain to a powerful asteroid impact that left the Caloris basin, a massive crater still visible on the planet's surface. Until now, it was thought that Mercury's chaotic terrain was created by earthquakes that ravaged Mercury following the impact.

    But in the new study, researchers suggest that this couldn't be possible because the timing just doesn't make sense. 

    "A key to the discovery was the finding that the development of the chaotic terrains persisted until approximately 1.8 billion years ago, 2 billion years after the Caloris basin formed," co-author Daniel Berman, also of the Planetary Science Institute, said in a statement. 

    This was the "first, kind of, smoking gun," Rodriguez told Space.com. The researchers were able to date these features using data and images from NASA's MESSENGER (MErcury Surface Space ENvironment GEochemistry and Ranging) spacecraft, which studied Mercury from orbit from 2011 to 2015. The team determined the ages of surface features including the chaotic terrain and the crater formed from the asteroid impact. 

    Additionally, as Rodriguez explained, the scientists noticed that there were many small features like tiny craters still intact in these terrains. With such a massive asteroid impact, "think about the worst earthquakes you could ever imagine," Rodriguez said. "Instead of bringing down buildings you're bringing down mountains … entire mountain ranges." 

    a close up of a map: Chaotic terrain (white outline) at the antipode of the Caloris basin. (Image credit: Planetary Science Institute. )

    © Provided by Space Chaotic terrain (white outline) at the antipode of the Caloris basin.

    (Image credit: Planetary Science Institute. )

    The researchers reasoned that, if earthquakes following the impact caused the chaotic terrain, then those smaller features wouldn't have been preserved. These observations informed the team/s findings that this previous notion about the chaotic terrain's formation was flawed. 

    Missing material

    But observations have also shown that some parts of the surface features have dropped, as if something below the surface simply gave way. And, as Rodriguez put it, when earthquakes cause buildings to fall, that matter spreads out over the surface. But in this case, they found that there was a whole bunch of matter that should've been in the chaotic terrain that seemed to be missing. 

    Keeping the conservation of matter in mind, the team suggests in this study that, instead of an impact and earthquakes causing the planet's surface to crack, volatiles under the surface created these features. 

    "In this case, we're seeing very clear drops in elevation, very, very abrupt surface losses that indicate that the materials were removed somehow," Rodriguez said. 

    Illustration of the solar system, showing the paths of the eight major planets as they orbit the Sun, plus the asteroids and comets. The four inner planets are, from inner to outer, Mercury, Venus, Earth and Mars. The four outer planets are, inner to outer, Jupiter, Saturn, Uranus and Neptune.

    Illustration of the solar system, showing the paths of the eight major planets as they orbit the Sun, plus the asteroids and comets. The four inner planets are, from inner to outer, Mercury, Venus, Earth and Mars. The four outer planets are, inner to outer, Jupiter, Saturn, Uranus and Neptune.

    They concluded that it's much more likely that volatiles underneath Mercury's surface were heated by magma even farther down. Because of this heating, the volatiles became gaseous and sublimated. 

    "Maybe these materials were volatile and they were transported away, and they could've condensed in other parts of the planet, or maybe they were entirely removed from the planet by solar winds," he added. 

    The sudden loss of this material is what the scientists think caused the planet's surface to crack and fall apart, creating the chaotic terrain we see today.

    So how could volatiles, which are essential to life here on Earth, survive on a planet whose daytime temperatures soar to 800 degrees Fahrenheit (430 degrees Celsius) and drop to minus 290 degrees F (minus 180 C) at night? 

    Digital Illustration of Planet Mercury

    © 3quarks Digital Illustration of Planet Mercury

    While the planet's surface swings wildly between temperature extremes, just below the surface, temperatures are milder, Rodriguez explained. 

    Rodriguez said that it's "likely that there was some sort of water that formed" in part of Mercury's crust. But the team cannot yet tell exactly what volatiles were present when the planet's surface broke apart. 

    However, not only are the researchers continuing this work to find an answer to that question, they are also working to understand a much more recent phenomenon.

    The future on Mercury

    While these events happened billions of years ago, "there is evidence of recent volatile removal within the chaotic terrain … maybe ongoing right now," Rodriguez said. 

    Mercury planet solar lens flare. Elements of this image furnished by NASA

    Mercury planet solar lens flare. Elements of this image furnished by NASA

    He explained that, following this study, researchers will be working on "the possibility of selecting a landing site where we could potentially sample these volatile-rich materials using some type of lander." 

    • This work was published March 16 in the journal Scientific Reports

    https://www.msn.com/en-gb }

    05-04-2020 om 22:42 geschreven door peter  

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    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Was Mercury once habitable?

    Was Mercury once habitable?

    As unlikely as it may sound, Mercury may have once been able to support subsurface microscopic life, according to a new study from the Planetary Science Institute.

    Crescent gray planet with smooth surface marked with shallow craters.

    Mercury – closest planet to the sun in our solar system – as seen during the first flyby of the MESSENGER spacecraft in 2008.

    Image via NASA.

    When it comes to the possibility of life elsewhere in our solar system, Mercury is easily one of the last places you’d think of. Being the closest planet to the sun – with no true atmosphere – it is a broiling, uninhabitable place of desolation. But was it always like that? As unlikely as it seems, a new study announced by researchers at the Planetary Science Institute (PSI) suggests that some regions in Mercury’s subsurface might have once been hospitable enough for prebiotic chemistry or – perhaps – even simple microscopic lifeforms.

    • The intriguing findings were published in a new peer-reviewed paper in Scientific Reports on March 16, 2020.

    The study focuses on Mercury’s chaotic terrain (aka its weird terrain): vast, cratered and “knobby” landscapes first seen by the Mariner 10 flybys in 1974. There are evolving ideas on how it came to be, but – according to the new study – this terrain was created by the removal of massive amounts of volatiles – chemical elements and compounds with low boiling points – in Mercury’s upper crust (and not simply seismic disturbances from the Caloris Basin impact as long thought).

    The chaotic terrain studied is antipodal – on the direct opposite side of the planet from – the Caloris Basin. The new analysis is based on much higher-resolution images taken later by the MESSENGER spacecraft. From the paper:

    Mercury’s images obtained by the 1974 Mariner 10 flybys show extensive cratered landscapes degraded into vast knob fields, known as chaotic terrain (AKA hilly and lineated terrain). For nearly half a century, it was considered that these terrains formed due to catastrophic quakes and ejecta fallout produced by the antipodal Caloris Basin impact. Here, we present the terrains’ first geologic examination based on higher spatial resolution MESSENGER (MErcury Surface Space ENvironment GEochemistry and Ranging) imagery and laser altimeter topography. Our surface age determinations indicate that their development persisted until ~1.8 Ga, or ~2 Gyrs after the Caloris Basin formed.

    Furthermore, we identified multiple chaotic terrains with no antipodal impact basins; hence a new geological explanation is needed. Our examination of the Caloris Basin’s antipodal chaotic terrain reveals multi-kilometer surface elevation losses and widespread landform retention, indicating an origin due to major, gradual collapse of a volatile-rich layer. Crater interior plains, possibly lavas, share the chaotic terrains’ age, suggesting a development associated with a geothermal disturbance above intrusive magma bodies, which best explains their regionality and the enormity of the apparent volume losses involved in their development. Furthermore, evidence of localized, surficial collapse, might reflect a complementary, and perhaps longer lasting, devolatilization history by solar heating.

    Map of textured false-color terrain with white outline, yellow rectangles and text annotations.

    Map of a chaotic terrain on Mercury (white outline). This region is on the antipode – the opposite point on the sphere of the planet – from the Caloris basin.

    Image via Planetary Science Institute/ Scientific Reports.

    Gray cut-away sketches of a volcano and its vicinity on white background with text annotations.

    Illustrations depicting the formation of chaotic terrains on Mercury. (A) A perspective cross-sectional view of Mercury’s cratered terrains undergoing structurally controlled upper crustal devolatilization and collapse. (B) Chaotic terrain landscape following large-scale volatile losses from the upper crust.

    Image via mage via Planetary Science Institute/ Scientific Reports.

    As lead author Alexis Rodriguez said in a statement for PSI:

    The findings mean that Mercury had a thick volatile-rich – possibly but not necessarily water-rich – crust in this location. Mercury’s surface temperature reaches a scorching 430 degrees Celsius [800 degrees Fahrenheit] during the daytime, and in the absence of an atmosphere, it plummets to -180 degrees Celsius [-290 F] at night. So, its surface environments have rightfully been out of scientific consideration as a possible host of life. However, the paper raises the prospect that some subsurface regions of Mercury have shown capacity for hosting life.

    The materials in the chaotic terrains were once part of geologic deposits deep underground, where crustal volatiles would have been protected. Those volatiles could have included water or water ice. PSI coauthor Daniel Berman said:

    The deep valleys and enormous mountains that now characterize the chaotic terrains were once part of volatile-rich geologic deposits a few kilometers deep, and do not consist of ancient cratered surfaces that were seismically disturbed due to the formation of Mercury’s Caloris impact basin on the opposite side of the planet, as some scientists had speculated. A key to the discovery was the finding that the development of the chaotic terrains persisted until approximately 1.8 billion years ago, 2 billion years after the Caloris Basin formed.

    Another coauthor, Gregory Leonard at the University of Arizona, said:

    We identified multi-kilometer surface elevation losses within the chaotic terrains located at the Caloris Basin’s antipode. This finding indicates that enormous volumes of crustal volatiles turned into gas and escaped the planet’s upper crust over a surface area slightly larger than that of California, approximately 500,000 square kilometers [200,000 sq miles].

    Grayish surface of a planet with yellow dashed circle and text annotations on black background, and inset showing rough texture.

    It has been thought that Mercury’s chaotic terrain was formed by the impact that created the Caloris Basin, but the new research suggests it may have been formed by the removal of crustal volatiles instead.

    Image via NASA/ SlidePlayer.

    Dark gray bumpy and cratered terrain.

    A closer view of some chaotic terrain on Mercury.

    Image via NASA/ Johns Hopkins University Applied Physics Laboratory/ Carnegie Institution of Washington.

    As Rodriguez also noted, the chaotic terrains on Mercury appear to be global, and might be found elsewhere as well, on Mercury-like exoplanets:

    Our investigation also shows that there are also numerous extensive chaotic terrains in other regions of the planet, which have latitudinal distributions ranging from equatorial to subpolar. Hence, Mercury’s volatile-rich crust appears to be greater than regional, perhaps global, in extent, and it is most likely made up of compositionally diverse volatile compounds. The apparent compositional diversity suggests that the planet’s upper crust might effectively be comprised of a large number of compositional and thermal conditions, some perhaps habitable, existing in Mercury-like exoplanets.

    But just how did the crustal volatiles get released from the subsurface? According to PSI scientist Kevin Webster, it was most likely due to volcanoes:

    Vast lava fields formed soon after the development of the chaotic terrains, so volcanic heat could have destabilized and released the apparently vast volumes of crustal volatiles.

    As for how Mercury obtained its volatiles in the first place, PSI scientist and coauthor Jeff Kargel added:

    We also observe evidence of surficial devolatilization, probably caused by solar heating. If so, we have an opportunity to infer the range of Mercury’s volatile properties and compositions. A possibility is that Mercury’s volatile-rich crust was delivered via impacts from the frigid confines of the outer solar system or the main asteroid belt. Alternatively, volatiles were outgassed from the interior.

    Gray sphere covered in craters on black background with long narrow white lines radiating from a crater.

    The battered surface of Mercury, as seen by the MESSENGER spacecraft. Bright rays radiate outward from Hokusai Crater in this view.

    Image via NASA/ Johns Hopkins University Applied Physics Laboratory/ Carnegie Institution of Washington.

    The researchers also noted that volatiles could have still been escaping from Mercury’s subsurface even much more recently, perhaps even still going on to this day. As Rodriguez noted:

    Evidence of recent, and perhaps on-going, volatile losses from within near-surface geologic materials on Mercury has been previously documented through the investigation of small depressions known as hollows, which kind of resemble melt pits in terrestrial permafrost. However, an unresolved issue remains the age disparity between these hollows and their volatile-bearing geologic units, which are thought to be billions of years old. Our results suggest that some hollows might represent the locations where lavas or sublimation lags covering these ancient geologic materials underwent collapse. This is exciting because their distribution might highlight areas where we can effectively access volatile-rich material, that after billions of years existing in the subsurface, have been finally been exposed to the surface.

    If Mercury’s early volatiles did include water or ice – something still unknown – then conceivably the planet could have had habitable niches in its subsurface. According to Kargel:

    While not all volatiles make for habitability, water ice can if temperatures are right. Some of Mercury’s other volatiles may have added to the characteristics of a former aqueous niche. Even if habitable conditions existed only briefly, relics of prebiotic chemistry or rudimentary life still might exist in the chaotic terrains.

    Smiling man with necklace on light-colored background.

    Alexis Rodriguez at PSI, lead author of the new study.

    Image via Planetary Science Institute.

    We also know that water ice still exists on Mercury today, in deep polar craters that are always in permanent shadow, and therefore much colder since there is no atmosphere to distribute heat from the sunlit regions. As PSI scientist Mark Sykes said:

    If these results are confirmed, this and other similar areas of collapse on Mercury could be important considerations for future landing sites to investigate the origin of the planet’s volatile-rich crust and, perhaps, even its astrobiological potential.

    The idea that Mercury could have supported life, or at least prebiotic chemistry, sounds outlandish at first thought, but – just maybe – this scorching, airless little world wasn’t always as inhospitable as it is now, at least underground.

    https://earthsky.org/ }

    05-04-2020 om 22:14 geschreven door peter  

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    Categorie:ASTRONOMIE / RUIMTEVAART
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.OVNI sur la Lune , 2020-03-26

    OVNI sur la Lune , 2020-03-26

    Cette vidéo n'est pas de moi. Un ami me l'a transmis.
    Filmé vers Montréal en fin d'après midi avec un Nikon P1000

    Il me raconte:

    Je film régulièrement la Lune de jour, au moment du premier et dernier croissant.
    Je pense que si une activité cachée doit être visible sur la Lune, c'est à ce moment la, quand la population ne l'observe pas, parce qu'il fait jour et que le premier ou dernier croissant la rend plus discrète dans le ciel.
    Et après des centaines de vidéos, le 26 mars...

    Jean-Michel Tenac

    https://www.youtube.com/ }

    05-04-2020 om 21:33 geschreven door peter  

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    Categorie:LATEST ( UFO ) VIDEO NEWS ( ENG)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Have You Seen a Strange String of UFOs in the Night Sky Recently? You Aren’t Alone

    Have You Seen a Strange String of UFOs in the Night Sky Recently? You Aren’t Alone

    Here’s a question for all you stargazers out there: what can you see passing through the sky at night that resemble stars or satellites, but all moving in a row?

    Many people have been asking this question recently, in light of unusual sightings of things in the night sky seen in a variety of locations across the globe.

    One such report was shared with me by a pilot back in November, who gave the following description of an unusual looking string of lights he observed in the sky:

    “Earlier this evening, at 35,000 feet and 2300z/7 pm Atlantic Standard time, I and my copilot saw a string of lights, high enough to be single points and not resolvable into objects, all irregularly strung out but in a perfect line and all with constant distances, covering in distance maybe 1/8 to 1/6 the arc of the sky, moving from roughly 335 degrees to 155 degrees on the compass and visible for 20-30 seconds.

    “At the time we were near 23N, 74W or roughly due south of San Salvador island,” he recalled.

    The time of the sighting was just after sundown, and the pilot (who requested that his name not be used) and his co-pilot observed the moon rising east of them.

    “All told there were probably 15-20 points strung out irregularly but in a perfect line, with no ionization trails or burning visible.”

    The pilot was perplexed by what they had seen and was unable to recall observing anything similar in the past. He also explained that he was familiar with the sorts of things common to the night sky on any clear night, which ranges from meteors to commercial satellites.

    “I’ve seen a lot of meteors up here as most of my flying is at night, and these were not meteors. I checked my satellite tracking app on my phone, but it showed nothing.”

    So what were the objects these pilots observed in the sky while flying near San Salvador Island back in November?

    Recent reports indicate that similar observations have continued into 2020, particularly by witnesses in the southwest from states like California, to as far south Mexico. General descriptions given liken the objects to a “strange row of lights” seen passing through the night sky, usually just after sundown.

    Although the pilot who contacted me in November was unsure of what the objects were that he and his co-pilot observed, he did have one idea about what could account for the lights they saw.

    “I assume this is a string of low earth orbit satellites, or space junk,” he wrote to me, “but I honestly have no idea where to start.”

    This is an excellent guess, especially on account of the fact SpaceX had just launched a series of satellites into space around the same time of the San Salvador sighting.

    According to Gizmodo, “SpaceX launched 60 satellites into orbit back in May and another 60 in November 11 as part of the Starlink satellite constellation, meant to increase satellite internet access.”

    Starlink satellites as seen from space shortly after launch in May 2019

    (Credit: Starlink / Wikimedia Commons).

    The satellites, according to Ryan F. Mandelbaum in his Gizmodo piece, “are also producing bright trains of lights across the sky, stoking UFO fears for those unaware of the satellites and distracting astronomers.”

    Although the deployment of these satellites may increase the availability of satellite internet in some locales, not everyone is thrilled about SpaceX’s new project. Many astronomers worry that having a “night train” of satellites drifting through the sky poses the risk of “obscuring our natural view of the cosmos,” as well as causing interference with “important astronomical observations,” George Dvorsky writes.

    Will SpaceX’s Starlink satellites prove to be beneficial in the long run, or simply a nuisance to astronomers and night sky “purists”? Although this remains to be seen, what’s for certain is that the Starlink array will become a common sight in the years to come for anyone who spends enough time looking at the night sky.

    https://mysteriousuniverse.org/ }

    05-04-2020 om 20:19 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:ASTRONOMIE / RUIMTEVAART


    Afbeeldingsresultaten voor  welcome to my website tekst

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    Beste bezoeker,
    Heb je zelf al ooit een vreemde waarneming gedaan, laat dit dan even weten via email aan Frederick Delaere op
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    Over mijzelf
    Ik ben Pieter, en gebruik soms ook wel de schuilnaam Peter2011.
    Ik ben een man en woon in Linter (België) en mijn beroep is Ik ben op rust..
    Ik ben geboren op 18/10/1950 en ben nu dus 73 jaar jong.
    Mijn hobby's zijn: Ufologie en andere esoterische onderwerpen.
    Op deze blog vind je onder artikels, werk van mezelf. Mijn dank gaat ook naar André, Ingrid, Oliver, Paul, Vincent, Georges Filer en MUFON voor de bijdragen voor de verschillende categorieën... Veel leesplezier en geef je mening over deze blog.
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    LINKS NAAR BEKENDE UFO-VERENIGINGEN - DEEL 1
  • http://www.ufonieuws.nl/
  • http://www.grenswetenschap.nl/
  • http://www.beamsinvestigations.org.uk/
  • http://www.mufon.com/
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  • http://www.stantonfriedman.com/
  • http://ufo.start.be/

    LINKS NAAR BEKENDE UFO-VERENIGINGEN - DEEL 2
  • www.ufo.be
  • www.caelestia.be
  • ufo.startpagina.nl.
  • www.wszechocean.blogspot.com.
  • AsocCivil Unifa
  • UFO DISCLOSURE PROJECT

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