Geen fotobeschrijving beschikbaar.

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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    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.
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    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...
    01-11-2016
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.These Scary Things in Space Will Haunt Your Dreams

    These Scary Things in Space Will Haunt Your Dreams

    01-11-2016 om 23:28 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.This Is the Best View Yet of Europe's Mars Lander Crash Site

    This Is the Best View Yet of Europe's Mars Lander Crash Site


    Europe's ExoMars lander gauged out a crater 1.6 feet (0.5 meters) deep and nearly 8 feet (2.4 m) wide when it crashed into the Red Planet's surface last week, a new photo by a NASA Mars orbiter reveals.  

    The lander, known as Schiaparelli, apparently deployed its parachute prematurely and didn't fire its thrusters nearly long enough to pull off a soft landing as planned on Oct. 19, European Space Agency (ESA) officials have said. 

    The new image, which was captured by NASA's Mars Reconnaissance Orbiter (MRO) on Tuesday (Oct. 25), shows the aftermath of Schiaparelli's violent impact. [In Photos: Europe's Schiaparelli Mars Landing Day]

    This Oct. 25, 2016, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows the area where Europe's Schiaparelli lander struck Mars. The inset at center shows where the main lander hit; at bottom is Schiaparelli’s parachute and back heat shield, while the inset at upper right shows the front heat shield.
    This Oct. 25, 2016, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows the area where Europe's Schiaparelli lander struck Mars. The inset at center shows where the main lander hit; at bottom is Schiaparelli’s parachute and back heat shield, while the inset at upper right shows the front heat shield.
    Credit: NASA/JPL-Caltech/Univ. of Arizona

    First of all, there's the main crater, which the lander blasted out when it hit the surface at a speed of about 180 mph (300 km/h). The fuzzy dark smudges around the central crater are difficult to interpret at the moment, ESA officials said: These markings are asymmetrical, which suggests that the impactor was traveling at a low angle to the ground, but Schiaparelli should have been descending pretty much perpendicular to the surface when it hit.

    "It is possible the hydrazine propellant tanks in the module exploded preferentially in one direction upon impact, throwing debris from the planet’s surface in the direction of the blast, but more analysis is needed to explore this idea further," ESA officials wrote in an update today (Oct. 27).

    "An additional long, dark arc is seen to the upper right of the dark patch but is currently unexplained," they added. "It may also be linked to the impact and possible explosion."

    About 0.9 miles (1.4 kilometers) south of this crater is a bright feature above a smaller gray disk, which are almost certainly Schiaparelli's 39-foot-wide (12 m) parachute and its attached rear heat shield, respectively, ESA officials said.

    Another bright feature 0.9 miles (1.4 km) east of the Schiaparelli crater is probably the lander's front heat shield, they added.


    "The mottled bright and dark appearance of this feature is interpreted as reflections from the multilayered thermal insulation that covers the inside of the front heatshield. Further imaging from different angles should be able to confirm this interpretation," ESA officials wrote in the update. "The dark features around the front heatshield are likely from surface dust disturbed during impact."

    Schiaparelli launched in March 2016 along with the Trace Gas Orbiter. Together, the two spacecraft make up the ExoMars 2016 mission — the first part of the two-phase ExoMars program, which ESA leads with assistance from its chief partner, the Russian federal space agency Roscosmos.

    The second phase of ExoMars aims to land a life-hunting rover on the Red Planet's surface in 2021. Schiaparelli's main goal was to test out the technologies needed to get this rover down safely, and the data gathered during the lander's Oct. 19 descent should be helpful in this regard, ESA officials have said.

    The ExoMars team expects to wrap up its investigation into what exactly happened during Schiaparelli's descent by mid-November, ESA officials added.

    The landing site of ExoMars’ Schiaparelli lander within the predicted landing ellipse (top), along with zoomed-in, before-and-after views (bottom left and bottom right, respectively) showing evidence of the lander’s crash on Oct. 19, 2016.
    The landing site of ExoMars’ Schiaparelli lander within the predicted landing ellipse (top), along with zoomed-in, before-and-after views (bottom left and bottom right, respectively) showing evidence of the lander’s crash on Oct. 19, 2016.
    Credit: Main image: NASA/JPL-Caltech/MSSS, Arizona State University; inserts: NASA/JPL-Caltech/MSSS

    TGO, for its part, aced a crucial orbit-insertion burn on Oct. 19 and is in good shape as it loops around Mars on a highly elliptical, four-day-long orbit, mission team members said. Early next year, the spacecraft will begin moving into its final science orbit, a circular path with an altitude of 250 miles (400 km).

    TGO should reach that orbit by March 2018, at which point the spacecraft will begin hunting for buried water ice and sniffing the Martian atmosphere for methane and other gases that could be signs of life. This science mission will last for about two years. TGO will also serve as a communications relay for the ExoMars rover and other surface craft before ending operations in 2022.

    MRO took the new photo with its supersharp High Resolution Imaging Science Experiment (HiRISE) camera. The Schiaparelli crash site was first identified last week in images captured by MRO's lower-resolution CTX camera.

    Follow Mike Wall on Twitter @michaeldwall and Google+. Follow us @SpacedotcomFacebook or Google+. Originally published on Space.com.

    Editor's Recommendations

    http://www.livescience.com/  }

    01-11-2016 om 22:46 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.Space Psychology 101: How NASA Keeps Its Astronauts Sane
    Scott Kelly seen inside the Cupola
    Space Psychology 101: How NASA Keeps Its Astronauts Sane
    In space, no one can hear you go crazy. Here’s how NASA makes sure that doesn't happen to its astronauts.

    Outer space is terrifying — not just on the body, but also on the mind. Extreme environments and situations can stretch people’s minds to the brink of sanity, and outer space is no exception. Sure, astronauts are protected inside their multimillion-dollar spacecraft, but those confined little metallic boxes can make one feel isolated and trapped. And we’re also making strides to put humans on other planets.

    All that time in the deep dark void — probably not good for the noggin, right?

    Thankfully, NASA’s on it. Welcome to the world alternately called aerospace psychiatry and psychology — a field of medicine where one provides mental health support to aviation professionals.

    Astronauts, in particular, have been the focus group for decades now. They’re people who we typically think of as the best of the best, “who are otherwise quite healthy, but operate in an abnormal environment,” says Gary Beven, NASA Flight Surgeon and Chief of Aerospace Psychiatry at NASA Johnson Space Center.

    Although the U.S. beat Russia to the moon, it was the Russians who started aerospace psychology. Beven explains that during missions onboard the Salyut 6 (1977 - 1982) and Salyut 7 (1982 - 1991) space stations, Soviet cosmonauts began to experience noticeable signs of psychological distress (or physical problems with an underlying psychological cause) while in space.

    Taylor Swift would do poorly in space.
    Taylor Swift would do poorly in space. 

    This most likely had to do with the longer durations of these missions. Salyut 6 had the first six-month space mission, while Salyut 7 upped the ante with the first-ever eight-month mission. Each mission put two or three cosmonauts in a fairly tight quarters with one another. Several crew stints had to be terminated before completion.

    The Russians were spurred into establishing their own space psychology program. “They brought in experts within the field of psychology to work full-time with the Russian space program,” says Beven. “They were involved not only with cosmonaut selection, but also providing support and monitoring the psychological well-being of astronauts while they were in space.”

    Until fairly recently, NASA wasn’t interested in long duration missions, so they had no need for psychologists or psychiatrists beyond the initial medical and mental health evaluation during the candidate selection process.

    That changed in the mid 1990s, when the U.S. and Russia established the Shuttle-Mir Program to allow NASA to learn about Russia’s experiences with long-duration space habitation. At that point, NASA brought in a group of psychologists and psychiatrists to develop a behavioral health and support group for the NASA astronauts that were staying aboard Russia’s Mir space station.

    Space Shuttle Atlantis docking to Mir.
    Space Shuttle Atlantis docking to Mir. 

    “Life aboard Mir was very arduous and very difficult,” says Beven. “Some of the (U.S.) astronauts even admitted they felt they had not been psychologically prepared for that type of a mission.” Some did exceptionally well, like Shannon Lucid (who stayed on Mir for seven months in 1996), but others publicly acknowledged the difficulty of living in an orbital spacecraft for months at a time. Part of the feelings of psychological anxiety and depression that crept up were simply the result of isolation, difficulty communicating with Russian counterparts on the station, the lack of leisure activities on Mir.

    With all that qualitative data and feedback, NASA refined the aerospace psychiatry system as it and the rest of the world began moving forward with the International Space Station. Today’s aerospace psychiatry group supports astronauts from the time of training all the way through the end of the mission — and even beyond to assist with post-mission acclimation to life on the ground. “In some ways, we may be involved with astronauts all the way to the end of their career,” says Beven. “We get to know them very well, and we also get to know their families very well.”

    Beven says the candidate selection process is probably the most important way to prepare astronauts for the mental rigors of space travel and life. The goal is to pick candidates who possess sound, sturdy minds. Beven and his team grade candidates on nine different “suitability proficiencies”:

    • ability to perform under stressful conditions
    • group living skills
    • teamwork skills
    • self-regulation of one’s emotions and mood
    • motivation
    • judgement and decision making
    • conscientiousness
    • communication skills
    • leadership skills

    They also screen for any history of major mental disorders or disqualifying problems. For the most part, candidates come from occupations where good mental health and the aforementioned traits are already a necessity, sometimes in already extreme or stressful environments — such as fighter pilot living aboard an aircraft carrier, or a scientist who has done stints at research stations in Antarctica. When you’re talking about picking 10 astronauts to train out of a final list of 60 people, you’re really getting the most mentally and behaviorally qualified group, says Beven.

    The vast majority of the aerospace psychiatry group’s work, however, revolves around proactively working with active astronauts. Beven says there are a little over 40 active astronauts currently working at NASA, and each one is notified they’ll be going up into space about two years prior to the mission launch.

    Beven and his team start to work directly with the astronaut (and their spouse), and their work can be categorized into two parts. The first is behavioral medicine: evaluating astronauts’ mental health at regular intervals before launch (the last meeting happening 60 days before launch) and training them to identify and deal with instances of psychological detriment in other crew members.

    Up in space, Beven or his colleagues will do a private video conference with each astronaut about every two weeks to go over everything pertaining to sleep, crew morale, if that astronaut is dealing well with the workload or experiencing fatigue (or even feeling underworked), their relationship with the ground team, concerns with family, and anything else. If they need immediate help, they can call Beven’s cell phone or send him an email in an instant, at any given moment. If any major concerns arise out of these avenues of communication, Beven and his team will confer with the flight surgeon to decide on a course of action.

    What kinds of problems are we talking about? For the most part, the typical psychological problems you’d find in space are no different from what you’d find in a high-stress environment here on the surface. They include:

    • difficulty sleeping
    • irritability
    • mood lability
    • feelings of discouragement
    • heightened nervousness or anxiety

    A nurse working in the E.R. or a long distance runner training for a marathon might experience these kinds of symptoms pretty regularly. But when an astronaut — who is trained more rigorously to withstand stressors — starts to experience these kinds of symptoms, there’s a much larger cause for concern, since they’re essentially trapped up there in space.

    Beven says these problems are not unlike what you might find for someone who is unfamiliar to a long winter in a northern country, or a prisoner who is placed in solitary confinement. “There’s nothing unique about the symptoms themselves. What’s unique is that, given the spaceflight environment, there’s no analogue for them here on Earth, because of the microgravity.”

    After getting back to Earth, the astronaut undergoes three more psychological assessments — at 3 days, 14 days, and 30 to 45 days after getting back — to go over lessons learned in hindsight and help the astronaut adjust to their new role on the ground.

    “Many astronauts, when they land, might not fly again for several years, so they need to determine if they will stay with NASA, or do something else,” Beven says — which can be a very difficult, debilitating decision, even among the least neurotic among humans.

    The other facet is what Beven calls behavioral support: it’s essentially the way he and his team make sure an astronaut has access to hobbies or forms of entertainment that they can indulge in in their leisure time to unwind and de-stress. It could range from music, to watching sporting events or television, having access to games — whatever. Even astronauts love to watch Game of Thrones, and it’s critical to keeping their sanity.

    “Our belief is that if you’re forced for six months or more to live and work in your office, the downtime really needs to be rejuvenating,” says Beven.

    So far NASA’s aerospace psychiatry program has been very successful. Beven says that every astronaut performs “exceptionally well,” for 95 percent or more of their mission duration. “Occasionally, they dip down to more mundane frustrations or frictions,” he concedes. Yet, for the entire time he and his team have been working with the ISS, “we’ve not noticed anything that would be of clinical significance,” nor anything that would terminate any mission or procedural activity due to psychological detriment.

    Artist's rendering of Mars Semi-Direct/DRA 1.0: The Manned Habitat Unit is “docked” alongside a pre placed habitat that was sent ahead of the Earth Return Vehicle.
    Artist's rendering of Mars Semi-Direct/DRA 1.0: The Manned Habitat Unit is "docked" alongside a pre placed habitat that was sent ahead of the Earth Return Vehicle.

    This is all thanks to the constant communication and support the team can provide astronauts while they’re up there in space. But as space travel begins to expand — both in allowing more people access to space travel, and in sending more people out to greater distances beyond Earth’s orbit — aerospace psychology will need to change. “In the next 10, 20, or even 50 years, how are we going to provide the system to allow the first Mars crew the same opportunities for psychological support that the ISS crew has — even if there is a 45-minute delay in communications?” asks Beven.

    One idea: using A.I. programs to that can provide instant cognitive behavioral therapy to astronauts onboard a spacecraft or working on a Martian or lunar colony. A future astronaut may be having bi-weekly meetings with an artificial robot on their iPad, instead of chatting so frequently with a human being here on Earth. “I don’t think anything on Earth right now has been proven to work in that realm, but that’s something we need to make certain is working,” says Beven.

    And as spaceflight becomes commercialized and low-Earth orbit operations are turned over to private companies, it’s unlikely commercial astronauts will be as rigorously screened as NASA’s astronauts are right now. Beven predicts “there will be someone who does have the first psychotic episode in space,” or the first manic episode, or someone who develops a drug or alcohol problem in space.

    But he’s optimistic: “The way in which those things are dealt with will spread into the psychiatric and psychological community.” He thinks, for example, an asteroid mining community will likely contract with a healthcare provider or institution, and work with them to provide on-call psychiatrist and psychologists who are available 24/7. Or, making sure a general physician who is there can detect signs of psychological problems and provide some sort of solution.

    At some point, we’ll see the first marriage in space, the first child born in space, and more — especially once we see a colony in space or somewhere on another world. “Space travel is becoming normal,” says Beven. It’s only natural that mental health services acclimate to those changes as well.

    Photos via NASA, NASA/Scott Kelly

    {

    01-11-2016 om 21:52 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.What Happens When You're Terrified of Space?
    What Happens When You're Terrified of Space?
    Spacephobia is the psychological problem of the future...

    The second space age is upon us, with its promises of imminent space tourisminevitable Mars colonizationand independent orbital countries.

    The fact that science fiction is becoming real excites many, annoys some, and absolutely terrifies an unfortunate few suffering from spacephobia or astrophobia, which is characterized by a fear of outer space or celestial objects. For those people, the idea of colonizing Mars is pants-wettingly horrifying. That’s fine, they don’t have to go. But psychologically similar spacephobes may truly suffer several generations down the line if humanity does become a multiplanetary species.

    For people with spacephobia, the very concept of space creates feelings of anxiety and distress. As with other phobias, this fear is irrational. Humans can only survive for 15 seconds exposed in space, but no one has — contrary to Gravity — floated off into orbit. The perils of both cis-lunar and extra-lunar space are also eminently avoidable for people who don’t work as professional astronauts.

    Phobias usually manifest themselves when you’re a child or a teenager — sometimes because of a specific event or experience, or sometimes because of an acute anxiety that may slowly progress into a full-blown fear. Genetic factors and brain chemistry may also play a role. Exposure to specific media could as well. It’s the golden age of science fiction right now and, yes, that could lead to the proliferation of fear.

    In a sense, spacephobia is an amped up version of agoraphobia, the unfortunately common fear of going outside. Agoraphobes suffer privately or overcome their terror to lead normal lives; regardless, it’s a rough time. And it could — at some point in the distant future — be a similarly hard go for spacephobics born to asteroid miners or deep space explorers. Eventually, spacephobia could become to natural-born Martians what aquaphobia currently is to those born on islands.

    For now, spacephobia is not debilitating, but like other phobias — which are treated variously with medications like beta blockers and antidepressants or exposure therapy, relying on acclimation to a phobia — it’s also nearly impossible to treat. If someone has ophidiophobia (fear of snakes), exposure therapy would probably first involve getting someone comfortable with first talking about snakes, then looking at pictures of snakes, then watching videos, and at last being comfortable with seeing snakes in real life and perhaps even holding one and interacting with it. Spacephobia is trickier because you can show pictures and video, but you can’t just send people into orbit (though virtual reality might help psychologists get around this limitation until rocket scientists eliminate it).

    For now, spacephobia and astrophobia are minor conditions. They do, however, permanently ground some peoples’ imaginations. And there is harm in that even if we’re all not headed to Mars tomorrow.

    Photos via Pixabay

    https://www.inverse.com/ }

    01-11-2016 om 21:27 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.If the Sun Explodes, We'll Have Just Enough Time to Scream
    Supernova
    1. If the Sun Explodes, We'll Have Just Enough Time to Scream
    Then it will get very, very warm

    The sun will blow up one day. And when that happens, the warm yellow orb at the center of our solar system will transform into a cooler — but still broiling — red giant. It will consume Mercury, Venus, and Earth. It’ll probably make Mars into a dessert. And yes, this will happen quickly. One day Earth will be there, and the next it will be gone. But don’t worry, there will be enough time for some suffering.

    There’s a few things you ought to remember about the sun. Light that’s emitted from our host star takes eight minutes and 20 seconds to hit our planet. If the sun suddenly blew up, we actually wouldn’t know it happened for — you guessed it — eight minutes, 20 seconds — since even that explosive light show would only be traveling, at maximum, the speed of light. The death and destruction would follow very, very shortly after that.

    But when the sun does blow up, it’s not simply going to extinguish like a small flame in a candle. It’s going to shoot out some really gnarly, very powerful stuff. All that energy — about as much as you would observe if you blew up a few octillion nuclear warheads — will almost instantly kill all life on Earth. Chances of survival will near zero.

    Even if the Earth miraculously survived, and life found a way to go on without the energy from the sun, the resulting radiation would decimate the planet. A supernova 30 light years away would probably result in a destruction of the ozone layer and mass extinctions. A supernova 8.3 light-minutes away? Annihilation. Explosions would vaporize the surface of the planet facing the sun. The other side would hit temperatures 15 times hotter than the surface of the sun right now. The entire planet would probably disintegrate in a few days.

    So, yeah, we’re not going to be able to walk it off.

    Now, it’s also important to remember that perhaps we might actually feel the effects of the sun’s departure, even during those eight minutes of impending doom. If the sun exploded, Earth would no longer have a celestial body to rotate around. And when the center ceased to hold, the gyre would widen. There are more nuanced ways of considering how this would actually work from a math and physics perspective, but the general notion is that Earth would go from planet to spaceship to nothingness over the course of relatively little time.

    Of course, you’re not supposed to worry about any of this. Our sun has only made it about halfway through its expected 10 billion-year lifespan. The sun is not going supernova tomorrow.

    Photos via Getty Images / NASA

    https://www.inverse.com }

    01-11-2016 om 21:10 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Physicists Apply Brakes to Accelerating Expansion of the Universe

    Physicists Apply Brakes to Accelerating Expansion of the Universe

    New research could permanently upend the standard model of cosmology as we know it. 

    The notion that the universe is expanding at an accelerating rate is taken as fact by the physics community. The three scientists who made that discovery won the Nobel Prize five years ago. And yet, new research by Oxford University physicists suggests that it may not be that simple. There may not be any acceleration at all. If they’re right our understanding of dark energy is up for debate and so is our standard model of cosmology.

    It just got more confusing to living in this particular universe.

    Published in Nature’s Scientific Reports, the findings incorporate an analysis of an expanded data set and instead suggests the supporting evidence for accelerated expansion is not as airtight as previously suggested. The new data set, which the researchers say is 10 times bigger than than the Nobel-winning data set was, includes a catalogue of 740 Type Ia supernovae, which occur in binary star systems. Type Ia supernovae are important to research into dark energy — which is hypothesized to make up 68.3 percent of all energy in the universe and essentially drive forward the acceleration of universal expansion. Type la supernovae flare up with the same brightness as the stars they burst out from, and therefore glow for large distances across space. Measuring the distance of this brightness is key to researching the changing dynamics of the expansion of the universe.

    According to Subir Sarkar, lead author of the Oxford team who wrote the new paper, the new data is more consistent with a constant rate of expansion for the universe. He and his team found that the evidence for accelerated expansion is, “at most, what physicists call ‘3 sigma’,” he said in a news release. “This is far short of the ‘5 sigma’ standard required to claim a discovery of fundamental significance.”

    For context, Sarkar recalled the example of the new particle the Large Hardon Collider at CERN found last December, which had a significance between 3.9 and 3.4 sigma. An analogous example in this context would be the recent suggestion for a new particle weighing 750 GeV based on data from the Large Hadron Collider at CERN. In August, however, that confidence dropped after new data showed the significance plummet to less than 1 sigma — indicating the initial data was almost certainly a statistical fluctuation.

    The new findings, if true, would also put doubts behind current estimates of how much of our universe is made of “dark energy.” If it turns out the universe is not expanding at an accelerated rate, it upends the entire standard model of cosmology and raises big questions about whether dark energy is real, whether it plays a role in universal expansion, or whether it does something else entirely.

    Sarkar and his team, however, are only poking holes in one of the many pieces of supporting evidence the universe is expanding at an accelerated rate, and not a constant one — such as the cosmic microwave background of the universe. But Sarkar thinks those tests were conducted on an assumption of an assumed model of accelerated expansion — and he also says “cosmic microwave background is not directly affected by dark energy.”

    Sarkar may be onto something, but he’s going to need a lot more evidence to bolster this hypothesis, and a lot more time to persuade his fellow scientists to take this seriously.

    “Naturally, a lot of work will be necessary to convince the physics community of this, but our work serves to demonstrate that a key pillar of the standard cosmological model is rather shaky,” he said. “Hopefully this will motivate better analyses of cosmological data, as well as inspiring theorists to investigate more nuanced cosmological models.”

    Photos via ESO/M. Kornmesser

    https://www.inverse.com/ }

    01-11-2016 om 20:50 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.NASA’s Scout Space Monitoring System Gave 5 Days Warning of Passing Asteroid

    NASA’s Scout Space Monitoring System Gave 5 Days Warning of Passing Asteroid

     
    P.Carril/ESA
    IN BRIEF
    • Thanks to NASA's Scout, we received warning of an incoming asteroid five days ahead of it (completely missing the planet).
    • With the ever-lengthening list of near-Earth objects, it is a comfort to know that there are currently systems in place to monitor threats, and they are only getting better.

    FIVE DAYS NOTICE

    Did you notice anything strange Sunday night? Perhaps a giant asteroid passing by the Earth?

    Scout did. Five days early.

    NASA JPL’s new space-monitoring system, Scout, detected an asteroid making its way toward our planet last week. In just ten minutes, the software displayed all potential routes the asteroid might take. Some of these paths did intersect our planet, but luckily, we had ample time to assess the possibility.

    Scout alerted three other telescopes that would help to narrow down the asteroid’s path. “When a telescope first finds a moving object, all you know is it’s just a dot, moving on the sky,” astronomer Paul Chodas from NASA’s Jet Propulsion Laboratory, told NPR.

    “You have no information about how far away it is. The more telescopes you get pointed at an object, the more data you get, and the more you’re sure you are how big it is and which way it’s headed. But sometimes you don’t have a lot of time to make those observations.”

    The asteroid, 2016 UR36, passed by us at a distance of 498,000 km (310,000 miles). Sound close? It was 1.3 times further away than the Moon.

    A telescope in Hawaii first spotted the asteroid. Rob Ratkowski/Courtesy of Pan-STARRS
    A telescope in Hawaii first spotted the asteroid.
    Rob Ratkowski/Courtesy of Pan-STARRS

    BETTER PROTECTION

    Five days might not seem like much, but it’s better than what we used to get. The first time researchers detected an asteroid hurdling toward Earth, they had just 19 hours to formulate a plan. Remember the dash cam footage of the meteor that exploded over Chelyabinsk in Russiaback in 2013? NASA didn’t have any notice at all for that encounter. Thanks to Scout, the confirmation process for asteroids can be expedited.

    Currently, NASA has more than 15,000 near-Earth objects on file that could potentially be heading toward Earth. “The NASA surveys are finding something like at least five asteroids every night,” says Chodas.

    Don’t start digging your underground bunker just yet, though. Scout’s job is to narrow down that list and assess which of those are a real threat. Scout is still relatively new – this was actually its first case study – but it is expected to be fully operational by the end of this year.

    http://futurism.com/ }

    01-11-2016 om 20:39 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.It Took 15 Months, But All of New Horizons’ Data Has Finally Been Downloaded

    It Took 15 Months, But All of New Horizons’ Data Has Finally Been Downloaded

     
    NASA/New Horizons
    IN BRIEF
    • Over a year after its closest approach to Pluto, all of the data from New Horizon has finally been safely transmitted to Earth.
    • The spacecraft made 400-plus scientific observations, which will give astronomers research opportunities for years to come.

    Finally, the New Horizons team has their entire “pot of gold.” 15 months after the mission’s flyby of the Pluto system, the final bits of science data from the historic July 2015 event has been safely transmitted to Earth.

    “The New Horizons mission has required patience for many years, but we knew the results would be well worth the wait,” New Horizons project scientists Hal Weaver told me earlier this year.

    Because of New Horizons’ great distance from Earth and the spacecraft’s low power output (the spacecraft runs on just 2-10 watts of electricity), it has a relatively low ‘downlink’ rate at which data can be transmitted to Earth, just 1-4 kilobits per second. That’s why it has taken so long to get all the science data back to Earth.

    “This is what we came for – these images, spectra and other data types that are going to help us understand the origin and the evolution of the Pluto system for the first time,” New Horizons principal investigator Alan Stern said a few months ago during an interview. “We’re seeing that Pluto is a scientific wonderland. The images have been just magical. It’s breathtaking.”

    Because it was a flyby, and the spacecraft had just one chance at gathering data from Pluto, New Horizons was designed to gather as much data as it could, as quickly as it could – taking about 100 times more data on close approach to Pluto and its moons than it could have sent home before flying onward. The spacecraft was programmed to send select, high-priority datasets home in the days just before and after close approach, and began returning the vast amount of remaining stored data in September 2015.

    New Horizons is now over 3.1 billion miles (5 billion km) away from Earth as it continues its journey through the Kuiper Belt. That translates to a current radio signal delay time of five hours, eight minutes at light speed.

    The science team created special software to keep track of all the data sets and schedule when they would be returned to Earth.

    New Horizons was about 3.7 million miles (6 million kilometers) from Pluto and Charon when it snapped this portrait late on July 8, 2015. Credits: NASA-JHUAPL-SWRI
    New Horizons was about 3.7 million mi (6 million km) from Pluto and Charon when it snapped this portrait on July 8, 2015.
    Credits: NASA-JHUAPL-SWRI

    The final item that was received was a portion of a Pluto-Charon observation sequence taken by the Ralph/LEISA imager. It arrived at New Horizons’ mission operations at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, at 5:48 a.m. EDT on Oct. 25. The downlink came via NASA’s Deep Space Network station in Canberra, Australia. It was the last of the 50-plus total gigabits of Pluto system data transmitted to Earth by New Horizons over the past 15 months.

    “We have our pot of gold,” said Mission Operations Manager Alice Bowman, of APL.

    Bowman also said the team will conduct a final data-verification review of New Horizons two onboard recorders before sending commands to erase all the data on the spacecraft. New Horizons has more work to do, so erasing the “old” data will clear space for new data to be taken during its Kuiper Belt Extended Mission (KEM). The spacecraft will do a series of distant Kuiper Belt object observations as well as perform a close encounter flyby with with a small Kuiper Belt object, 2014 MU69, on Jan. 1, 2019.

    “There’s a great deal of work ahead for us to understand the 400-plus scientific observations that have all been sent to Earth,” said Stern. “And that’s exactly what we’re going to do—after all, who knows when the next data from a spacecraft visiting Pluto will be sent?”

    You can see all of New Horizons images at the New Horizons/APL website.

    http://futurism.com/ }

    01-11-2016 om 20:33 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Most remarkable UFO sightings in October 2016

    Most remarkable UFO sightings in October 2016


    ufos-october
    Most remarkable UFO sightings in October 2016 by www.Latest-UFO-Sightings.net.

    11th October 2016; bright object – Las Vegas, Nevada


    13th October 2016; UFO over stadium – Geneva, Switzerland


    16th October 2016; strange lights in the sky – Charlotte, North Carolina


    16th October 2016; UFO near volcano – Popocatepetl Volcano, Mexico


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

    01-11-2016 om 20:23 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.RECONSTRUCTED 2000 YEAR OLD MANUSCRIPT PROVE THE EXISTENCE OF THE NEPHILIM RACE!

    RECONSTRUCTED 2000 YEAR OLD MANUSCRIPT PROVE THE EXISTENCE OF THE NEPHILIM RACE!

    History is surrounded with mysteries and we add new information every now and then, some of this new information can even rewrite history as we know it. 
     
    But the biggest mystery comes from ante deluvian times, when humans and other races roamed the Earth. Several ancient texts speak of a race of supernatural giants called "The Nephilim", which are the offspring of female humans and fallen angels.
     
     There's an ancient 2000 year old manuscript, with little to no information about it's author, that speaks of the Nephilim race and their role in the world. The book in question is called "The Book of Giants". The manuscript can be put in parallel with another ancient christian book called "The Book of Enoch". Enoch was a prophet that was granted a vision of heaven and spoke to many deities. 
     
    Could these be proof of the existence of super human giants? 
     
    Watch the video to learn more! 
     
     
     

    01-11-2016 om 20:09 geschreven door peter  

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    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.UFOs over Melbourne ECETI Aus Sky Watch October 29th 2016, Video, UFO Sighting News.

    UFOs over Melbourne ECETI Aus Sky Watch October 29th 2016, Video, UFO Sighting News.



    Date of sighting: Oct 29, 2016
    Location of sighting: Melbourne, Australia

    This is a really amazing video of a powerful glowing orb summoned that hovers over some people in Melbourne this week. They are part of the US ECETI ranch group, but stationed in Australia. 


    The UFO comes over them on an overcast night, hovers, and then moves about in the sky some before it leaves.


    They mentioned a Star Language, which is some sort of positive thinking and feelings of love so the UFO will come. As I have said before, UFOs often are equipped with emotional sensors, which are also useful to protect it as well as find those who are receptive to their appearance. 

    Scott C. Waring

    http://www.ufosightingsdaily.com/ }

    01-11-2016 om 19:53 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.UFO Disguised As Meteor Has Flying Saucer Come Out Of It, Japan, Oct 31, 2016, Video, UFO Sighting News.

    UFO Disguised As Meteor Has Flying Saucer Come Out Of It, Japan, Oct 31, 2016, Video, UFO Sighting News.

    Date of sighting: Oct 31, 2016
    Location of sighting: Japan
    News source: http://www.news24.jp/articles/2016/10/31/07345195.html

    This UFO tried hard to disguise itself as a green glowing meteor over Japan yesterday, however it made some amateurish mistakes. First, its glowing a color most meteors don't glow...green. Its rare. Second, its performing the horizontal mambo, and meteorites do not fly horizontal while that low to the planet. Gravity would have pulled it down and it would have a curve. Third and this was the stupidest mistake the aliens made. The main ship turned off its glow for only 1/10th a second, (watch in slow motion) and at that moment a silver disk came out and moved back slowly away from the main ship. This is a disk, with a domed upper portion and grey metallic hull. 

    See, even aliens make mistakes, this pilot, he made a lot. 

    Scott C. Waring


    http://www.ufosightingsdaily.com/ }

    01-11-2016 om 14:53 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.Humanoid Robots to Flying Cars: 10 Coolest DARPA Projects

    Humanoid Robots to Flying Cars: 10 Coolest DARPA Projects

    01-11-2016 om 00:42 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.SpaceX versus Blue Origin: de ontsluiting van de ruimte nadert

    http://www.scientias.nl/ }

    01-11-2016 om 00:13 geschreven door peter  

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    Categorie:ASTRONOMIE / RUIMTEVAART
    31-10-2016
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Meer dan 15.000 aardscheerders bekend

    http://www.scientias.nl/ }

    31-10-2016 om 23:54 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.Is er water gevonden op de grootste planetoïde van ijzer?

    31-10-2016 om 23:50 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.MAVEN Gives Unprecedented Ultraviolet View of Mars

    MAVEN Gives Unprecedented Ultraviolet View of Mars

    MAVEN Mars nightside nitric oxide emissions

    This image of Mars’ nightside shows ultraviolet emission from nitric oxide (abbreviated NO). The emission is shown in false color with black as low values, green as medium, and white as high. These are the first such images obtained at Mars. Nightglow is a common planetary phenomenon in which the sky faintly glows even in the complete absence of external light. These emissions track the recombination of atomic N and O produced on the dayside, and reveal the circulation patterns of the atmosphere. The splotches, streaks and other irregularities in the image are indications that atmospheric patterns are extremely variable on Mars’ nightside. The portion of the globe without data lies on the dayside, making NO emission from recombination undetectable. The inset shows the viewing geometry on the planet. MAVEN’s Imaging UltraViolet Spectrograph obtained this image of Mars on May 4, 2016 during late winter in Mars Southern Hemisphere.

    (Courtesy NASA/University of Colorado-LASP/MAVEN-IUVS)

    New global images of Mars from the MAVEN mission show the ultraviolet glow from the Martian atmosphere in unprecedented detail, revealing dynamic, previously invisible behavior. They include the first images of “nightglow” that can be used to show how winds circulate at high altitudes. Additionally, dayside ultraviolet imagery from the spacecraft shows how ozone amounts change over the seasons and how afternoon clouds form over giant Martian volcanoes. The images were taken by the MAVEN Imaging UltraViolet Spectrograph (IUVS).

    “MAVEN obtained hundreds of such images in recent months, giving some of the best high-resolution ultraviolet coverage of Mars ever obtained,” said Nick Schneider of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder. Schneider is presenting these results Oct. 19 at the American Astronomical Society Division for Planetary Sciences meeting in Pasadena, California.

    Nightside images show ultraviolet (UV) “nightglow” emission from nitric oxide (abbreviated NO). Nightglow is a common planetary phenomenon in which the sky faintly glows even in the complete absence of external light. Mars’ nightside atmosphere emits light in the ultraviolet due to chemical reactions that start on Mars’ dayside. Ultraviolet light from the sun breaks down molecules of carbon dioxide and nitrogen, and the resulting atoms are carried around the planet by high-altitude wind patterns that encircle the planet. On the nightside, these winds bring the atoms down to lower altitudes where nitrogen and oxygen atoms collide to form nitric oxide molecules. The recombination releases extra energy, which comes out as ultraviolet light.

    Scientists predicted NO nightglow at Mars, and prior missions detected its presence, but MAVEN has returned the first images of this phenomenon in the Martian atmosphere. Splotches and streaks appearing in these images occur where NO recombination is enhanced by winds. Such concentrations are clear evidence of strong irregularities in Mars’ high altitude winds and circulation patterns. These winds control how Mars’ atmosphere responds to its very strong seasonal cycles. These first images will lead to an improved determination of the circulation patterns that control the behavior of the atmosphere from approximately 37 to 62 miles (about 60 to 100 kilometers) high.

    MAVEN IUVS cloud formation


    MAVEN’s Imaging UltraViolet Spectrograph obtained these images of rapid cloud formation on Mars from July 9-10, 2016. The ultraviolet colors of the planet have been rendered in false color, to show what we would see with ultraviolet-sensitive eyes. The series interleaves MAVEN images to show about 7 hours of Mars rotation during this period, just over a quarter of Mars’ day. The left part of the planet in morning and the right side in afternoon. Mars’ prominent volcanoes, topped with white clouds, can be seen moving across the disk. Mars’ tallest volcano, Olympus Mons, appears as a prominent dark region near the top of the images, with a small white cloud at the summit that grows during the day. Olympus Mons appears dark because the volcano rises up above much of the hazy atmosphere which makes the rest of the planet appear lighter. Three more volcanoes appear in a diagonal row, with their cloud cover merging to span up to a thousand miles by the end of the day. These images are particularly interesting because they show how rapidly and extensively the clouds topping the volcanoes form in the afternoon. Similar processes occur at Earth, with the flow of winds over mountains creating clouds. Afternoon cloud formation is a common occurrence in the American West, especially during the summer.

    (Courtesy NASA/University of Colorado-LASP/MAVEN-IUVS)

    Dayside images show the atmosphere and surface near Mars’ south pole in unprecedented ultraviolet detail. They were obtained as spring comes to the southern hemisphere. Ozone is destroyed when water vapor is present, so ozone accumulates in the winter polar region where the water vapor has frozen out of the atmosphere. The images show ozone lasting into spring, indicating that global winds are inhibiting the spread of water vapor from the rest of the planet into winter polar regions. Wave patterns in the images, revealed by UV absorption from ozone concentrations, are critical to understanding the wind patterns, giving scientists an additional means to study the chemistry and global circulation of the atmosphere.

    MAVEN observations also show afternoon cloud formation over the four giant volcanoes on Mars, much as clouds form over mountain ranges on Earth. IUVS images of cloud formation are among the best ever taken showing the development of clouds throughout the day. Clouds are a key to understanding a planet’s energy balance and water vapor inventory, so these observations will be valuable in understanding the daily and seasonal behavior of the atmosphere.

    “MAVEN’s elliptical orbit is just right,” said Justin Deighan of the University of Colorado Boulder, who led the observations. “It rises high enough to take a global picture, but still orbits fast enough to get multiple views as Mars rotates over the course of a day.”

    MAVEN’s principal investigator is based at the University of Colorado’s Laboratory for Atmospheric and Space Physics, Boulder. The university provided two science instruments and leads science operations, as well as education and public outreach, for the mission. NASA’s Goddard Space Flight 

    Center in Greenbelt, Maryland, manages the MAVEN project and provided two science instruments for the mission. The University of California at Berkeley’s Space Sciences Laboratory also provided four science instruments for the mission. Lockheed Martin built the spacecraft and is responsible for mission operations. NASA’s Jet Propulsion Laboratory in Pasadena, California, provides navigation and Deep Space Network support, as well as the Electra telecommunications relay hardware and operations.

    http://lasp.colorado.edu/home/maven/ }

    31-10-2016 om 22:30 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.Mogelijk schuilt in 20 jaar oude data van het CERN een nieuw deeltje - HLN.be

    Mogelijk schuilt in 20 jaar oude data van het CERN een nieuw deeltje - HLN.be

    Bron: Belga

    © ap.

    De gigantische deeltjesversneller LHC van het Europees Centrum voor Nucleair Onderzoek in Genève mag dan wel het met het Higssboson het sluitstuk van het Standaardmodel rond de materie, en België een Nobelprijs, hebben opgeleverd, in twintig jaar oude data van zijn voorganger schuilt mogelijk nog een nieuw deeltje. Dat heeft het populair-wetenschappelijke tijdschrift New Scientist vandaag getwitterd.

    In de tunnel waar nu de LHC staat, werkte van 1989 tot 2000 de deeltjesversneller LEP of "Large Electron-Positron Collider". Daarmee analyseerden wetenschappers bij botsingen van elektronen en prositronen het verval van Z-bosonen.

    Maar de vorsers tendeerden daarbij, net als bij de zoektocht naar het Higgsboson, enkel te kijken naar signalen dat theoretische modellen hadden voorspeld. Zo was het bestaan van het Higgsboson in 1964 voorspeld door de Schot Peter Higgs, en de Belgen François Englert en Robert Brout.

    Sinds het experiment met de ALEPH-deeltjesdetector afliep, zijn echter vele nieuwe theorieën ontstaan. Wat Arno Heister van het CERN ertoe aanzette de oude data nog eens opnieuw te bekijken. 

    Zonder iets bijzonders te zoeken stootte hij op een lichte overschrijding van vervalproducten bij een energie van zowat 30 gigaelectronvolt (GeV). Als het geen statistisch artifact is, kan het wijzen op het bestaan van een nieuw deeltje dat naar een complexere theorie over het wezen van de natuur kan leiden.

    Zo hongeren natuurkundigen naar een model dat vragen kan beantwoorden waarom er meer materie is dan antimaterie en waaruit donkere materie bestaat.

    Lees ook

    http://www.hln.be/ }

    31-10-2016 om 22:15 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:HLN.be - Het Laatste Nieuws ( NL)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Radiotelescoop zoekt nu toch naar buitenaards leven nabij mysterieuze ster - HLN.be

    Radiotelescoop zoekt nu toch naar buitenaards leven nabij mysterieuze ster - HLN.be

    Bron: Belga

    Een voorstelling van Tabby's Ster. © NASA.

    STER Het mysterie rond Tabby's Ster of KIC 8462852, de meest tot de verbeelding sprekende ster in onze Melkweg, wordt groter en groter. Wetenschappers merken voortdurend schommelingen op in haar helderheid en er blijkt tussen de ster en ons af en toe iets zeer groots en donkers te passeren. Sommigen suggereerden eerder al dat er buitenaards leven in het spel is.

    De Green Bank-telescoop in West Virginia is de grootste ter wereld en wordt nu ingeschakeld om de ster te onderzoeken. © epa.

    Wetenschappers gaan voort in hun onderzoek van Tabby's Ster en richten gedurende twee maanden elke nacht vier uur lang de Green Bank-radiotelescoop in West Virginia op de mysterieuze ster, die op 1.480 lichtjaar van ons verwijderd is. Dat meldt alvast de Amerikaanse zender ABC.

    Dat de ster een erg afwijkend lichtpatroon vertoont, heeft allicht te maken met de aanwezigheid van een gigantische meteoor die in de omgeving van de ster te vinden is.

    Hoewel de kans op buitenaards leven dus zeer minimaal is en eerder al uitgesloten, zijn de onderzoekers toch van plan alle data die de telescoop oplevert, na te gaan. Dat werkje zal meer dan een maand in beslag nemen.

    Eén op een miljard
    Wetenschapper Dan Werthimer (universiteit van Berkeley) zegt dat de kans op buitenaards leven - en het vreemde gedrag van de ster die gelinkt kan worden aan een megastructuur van een geavanceerde buitenaardse beschaving om energie te vangen - "één op een miljard" is. "Niettemin zullen we het controleren."

    "Ik denk dat E.T., wanneer hij ooit wordt gevonden, iets als dit kan zijn", vervolgde hij laconiek.

    Lees ook

    http://www.hln.be/ }

    31-10-2016 om 22:08 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:HLN.be - Het Laatste Nieuws ( NL)
    Klik hier om een link te hebben waarmee u dit artikel later terug kunt lezen.Van alle gevonden asteroïden riskeren er 15.000 ooit in te slaan op aarde - HLN.be

    Van alle gevonden asteroïden riskeren er 15.000 ooit in te slaan op aarde - HLN.be 

     Bron: ANP

    © Thinkstock.

    RUIMTE Wetenschappers hebben al 15.000 asteroïden gevonden die door de ruimte razen en ooit kunnen inslaan op aarde. En het totale aantal ligt waarschijnlijk nog veel hoger. Drie jaar geleden stond de teller op 10.000.

    Lees ook

    "We ontdekken gemiddeld dertig nieuwe objecten per week", meldt Europese ruimtevaartorganisatie ESA, die meedoet aan het onderzoek. "Enkele tientallen jaren geleden vonden we dertig in een jaar." Dat tempo gaat waarschijnlijk omhoog als nieuwe, geavanceerde telescopen in gebruik worden genomen.

    © Thinkstock.

    Door ons zonnestelsel suizen meer dan 700.000 asteroïdes. De meeste staan ver weg en komen nooit in de buurt van de aarde, maar een deel ervan komt wel in de buurt. Dat zijn de Near-Earth Objects (NEOs). 

    Van klein tot heel groot
    Sommige rotsblokken zijn meer dan een kilometer in doorsnee, en daarvan is volgens ESA ongeveer 90 procent gevonden. "Van de rotsen die groter dan 100 meter zijn, hebben we slechts 10 procent gevonden. En minder dan 1 procent van de objecten die groter dan 40 meter zijn.'' 

    De kans is bijzonder klein dat een van die objecten in de komende veertig jaar inslaat. Maar volgens ESA moeten alle NEOs in de gaten worden gehouden om te weten waar ze naartoe gaan.

     { http://www.hln.be/ }

    31-10-2016 om 21:58 geschreven door peter  

    0 1 2 3 4 5 - Gemiddelde waardering: 0/5 - (0 Stemmen)
    Categorie:HLN.be - Het Laatste Nieuws ( NL)


    Afbeeldingsresultaten voor  welcome to my website tekst

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    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 74 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 2
  • www.ufo.be
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  • ufo.startpagina.nl.
  • www.wszechocean.blogspot.com.
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