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.
Druk op onderstaande knop om te reageren in mijn forum
Zoeken in blog
Deze blog is opgedragen aan mijn overleden echtgenote Lucienne.
In 2012 verloor ze haar moedige strijd tegen kanker!
In 2011 startte ik deze blog, omdat ik niet mocht stoppen met mijn UFO-onderzoek.
BEDANKT!!!
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 Ontdek de Fascinerende Wereld van UFO's en UAP's: Jouw Bron voor Onthullende Informatie!
Ben jij ook gefascineerd door het onbekende? Wil je meer weten over UFO's en UAP's, niet alleen in België, maar over de hele wereld? Dan ben je op de juiste plek!
België: Het Kloppend Hart van UFO-onderzoek
In België is BUFON (Belgisch UFO-Netwerk) dé autoriteit op het gebied van UFO-onderzoek. Voor betrouwbare en objectieve informatie over deze intrigerende fenomenen, bezoek je zeker onze Facebook-pagina en deze blog. Maar dat is nog niet alles! Ontdek ook het Belgisch UFO-meldpunt en Caelestia, twee organisaties die diepgaand onderzoek verrichten, al zijn ze soms kritisch of sceptisch.
Nederland: Een Schat aan Informatie
Voor onze Nederlandse buren is er de schitterende website www.ufowijzer.nl, beheerd door Paul Harmans. Deze site biedt een schat aan informatie en artikelen die je niet wilt missen!
Internationaal: MUFON - De Wereldwijde Autoriteit
Neem ook een kijkje bij MUFON (Mutual UFO Network Inc.), een gerenommeerde Amerikaanse UFO-vereniging met afdelingen in de VS en wereldwijd. MUFON is toegewijd aan de wetenschappelijke en analytische studie van het UFO-fenomeen, en hun maandelijkse tijdschrift, The MUFON UFO-Journal, is een must-read voor elke UFO-enthousiasteling. Bezoek hun website op www.mufon.com voor meer informatie.
Samenwerking en Toekomstvisie
Sinds 1 februari 2020 is Pieter niet alleen ex-president van BUFON, maar ook de voormalige nationale directeur van MUFON in Vlaanderen en Nederland. Dit creëert een sterke samenwerking met de Franse MUFON Reseau MUFON/EUROP, wat ons in staat stelt om nog meer waardevolle inzichten te delen.
Let op: Nepprofielen en Nieuwe Groeperingen
Pas op voor een nieuwe groepering die zich ook BUFON noemt, maar geen enkele connectie heeft met onze gevestigde organisatie. Hoewel zij de naam geregistreerd hebben, kunnen ze het rijke verleden en de expertise van onze groep niet evenaren. We wensen hen veel succes, maar we blijven de autoriteit in UFO-onderzoek!
Blijf Op De Hoogte!
Wil jij de laatste nieuwtjes over UFO's, ruimtevaart, archeologie, en meer? Volg ons dan en duik samen met ons in de fascinerende wereld van het onbekende! Sluit je aan bij de gemeenschap van nieuwsgierige geesten die net als jij verlangen naar antwoorden en avonturen in de sterren!
Heb je vragen of wil je meer weten? Aarzel dan niet om contact met ons op te nemen! Samen ontrafelen we het mysterie van de lucht en daarbuiten.
24-05-2014
Analyzing sun-like stars that eat Earth-like planets
Analyzing sun-like stars that eat Earth-like planets
Some Sun-like stars are ‘Earth-eaters.’ During their development they ingest large amounts of the rocky material from which ‘terrestrial’ planets like Earth, Mars and Venus are made. Credit: Image courtesy of Vanderbilt University
Some Sun-like stars are ‘earth-eaters.’ During their development they ingest large amounts of the rocky material from which ‘terrestrial’ planets like Earth, Mars and Venus are made.
Trey Mack, a graduate student in astronomy at Vanderbilt University, has developed a model that estimates the effect that such a diet has on a star’s chemical composition and has used it to analyze a pair of twin stars which both have their own planets. The results of the study were published online on May 7 in the Astrophysical Journal.
“Trey has shown that we can actually model the chemical signature of a star in detail, element by element, and determine how that signature is changed by the ingestion of Earth-like planets,” said Vanderbilt Professor of Astronomy Keivan Stassun, who supervised the study. “After obtaining a high-resolution spectrum for a given star,
This ability will add substantially to astronomers’ understanding of the process of planet formation as well as assisting in the ongoing search for Earth-like exoplanets, according to the astronomers.
First, some background: Stars consist of more than 98 percent hydrogen and helium. All the other elements make up less than 2 percent of their mass. Astronomers have arbitrarily defined all the elements heavier than hydrogen and helium as metals and have coined the term “metallicity” to refer to the ratio of the relative abundance of iron to hydrogen in a star’s chemical makeup.
Since the mid-1990′s, when astronomers developed the capability to detect extrasolar planets in large numbers, there have been several studies that attempt to link star metallicity with planet formation. In one such study, researchers at Los Alamos National Laboratory argued that stars with high metallicity are more likely to develop planetary systems than those with low metallicity. Another study concluded that hot Jupiter-sized planets are found predominantly circling stars with high metallicity while smaller planets are found circling stars with a wide range of metal content.
Building on the work of coauthor Simon Schuler of the University of Tampa, who expanded the examination of stars’ chemical composition beyond their iron content, Mack looked at the abundance of 15 specific elements relative to that of the Sun. He was particularly interested in elements like aluminum, silicon, calcium and iron that have melting points higher than 1,200 degrees Fahrenheit (600 degrees Celsius) because these are the refractory materials that serve as building blocks for Earth-like planets.
we can actually detect that signature in detail, element by element.”
Mack, Schuler and Stassun decided to apply this technique to the planet-hosting binary pair designated HD 20781 and HD 20782. Both stars should have condensed out of the same cloud of dust and gas and so both should have started with the same chemical compositions. This particular binary pair is the first one discovered where both stars have planets of their own.
Both of the stars in the binary pair are G-class dwarf stars similar to the Sun. One star is orbited closely by two Neptune-size planets. The other possesses a single Jupiter-size planet that follows a highly eccentric orbit. The difference in their planetary systems make the two stars ideal for studying the connection between exoplanets and the chemical composition of their stellar hosts.
When they analyzed the spectrum of the two stars the astronomers found that the relative abundance of the refractory elements was significantly higher than that of the Sun. They also found that the higher the melting temperature of a particular element, the higher was its abundance, a trend that serves as a compelling signature of the ingestion of Earth-like rocky material. They calculated that each of the twins would have had to consume an additional 10-20 Earth-masses of rocky material to produce the chemical signatures. Specifically, the star with the Jupiter-sized planet appears to have swallowed an extra ten Earth masses while the star with the two Neptune-sized planets scarfed down an additional 20.
The results support the proposition that a star’s chemical composition and the nature of its planetary system are linked.
“Imagine that the star originally formed rocky planets like Earth. Furthermore, imagine that it also formed gas giant planets like Jupiter,” said Mack. “The rocky planets form in the region close to the star where it is hot and the gas giants form in the outer part of the planetary system where it is cold. However, once the gas giants are fully formed, they begin to migrate inward and, as they do, their gravity begins to pull and tug on the inner rocky planets.
“With the right amount of pulling and tugging, a gas giant can easily force a rocky planet to plunge into the star. If enough rocky planets fall into the star, they will stamp it with a particular chemical signature that we can detect.”
Following this logic, it is unlikely that either of the binary twins possesses terrestrial planets. On one star, the two Neptune-sized planets are orbiting the star quite closely, at one-third the distance between Earth and the Sun. On the other star the trajectory of the Jupiter-sized planet grazes the star, taking it closer than orbit of Mercury at the point of closest approach. The astronomers speculate that the reason the star with the two Neptune-size planets ingested more terrestrial material than its twin was because the two planets were more efficient at pushing material into their star than the single Jupiter-sized planet was at pushing material into its star.
If the chemical signature of G-class stars that swallow rocky planets proves to be universal, “when we find stars with similar chemical signatures, we will be able to conclude that their planetary systems must be very different from our own and that they most likely lack inner rocky planets,” said Mack. “And when we find stars that lack these signatures, then they are good candidates for hosting planetary systems similar to our own.”
Added Stassun: “This work reveals that the question of whether and how stars form planets is actually the wrong thing to ask. The real question seems to be how many of the planets that a star makes avoid the fate of being eaten by their parent star?”
The research was supported by National Science Foundation grants AAG AST-1009810 and PAARE AST-0849736.
Video:
Story Source:
The above story is based on materials provided by Vanderbilt University. The original article was written by David Salisbury. Note: Materials may be edited for content and length.
Journal Reference:
Claude E. Mack III, Simon C. Schuler, Keivan G. Stassun, John Norris. DETAILED ABUNDANCES OF PLANET-HOSTING WIDE BINARIES. I. DID PLANET FORMATION IMPRINT CHEMICAL SIGNATURES IN THE ATMOSPHERES OF HD 20782/81?The Astrophysical Journal, 2014; 787 (2): 98 DOI: 10.1088/0004-637X/787/2/98
NASA book: Space aliens might have created rock carvings
NASA book: Space aliens might have created rock carvings
Space aliens might have created rock carvings
Each month a new planet is discovered that bears similarities to our own – and it is becoming increasingly apparent Earth is not unique. So it stands to reason that of the billions of Earth-like planets in our galaxy alone, there might be another that hosts life.
It’s a thought that is gaining more credence all the time, and now Nasa has released a fascinating book detailing how, or if, we might communicate with some of these worlds. Some of the most interesting chapters tackle the issue of alien communication in the past, present and future.
‘If a radio signal is detected in a modern Seti experiment, we could well know that another intelligence exists, but not know what they are saying,’ he writes in the book’s introduction. He goes on to add: ‘Even if we detect a civilisation circling one of our nearest stellar neighbours, its signals will have traversed trillions of miles, reaching Earth after travelling for years.’
But, all hope is not lost – throughout the book Vakoch and his colleagues tackle these very problems, and provide solutions that may prove invaluable in the future. ‘To move beyond the mere detection of such intelligence, and to have any realistic chance of comprehending it, we can gain much from the lessons learned by researchers facing similar challenges on Earth,’ he continues.
‘Like archaeologists who reconstruct temporally distant civilisations from fragmentary evidence, Seti researchers will be expected to reconstruct distant civilisations separated from us by vast expanses of space as well as time.
‘As we attempt to decode and interpret extraterrestrial messages, we will be required to comprehend the mindset of a species that is radically Other.’ Elsewhere in the compendium the authors tackle the question of the possible biology, evolution and physics of an extraterrestrial race.
Vakoch explains how the methods via which aliens communicate might be vastly different from our own, making contact difficult. He says that messaging through sound, as we are used to on Earth, might not be possible.
‘On the other hand, vision and the use of images would appear to be at least plausible,’ he writes.
And, he adds, imaging the surface of habitable planets in the future might reveal ‘the physical arrangement of objects’ that suggests the presence of alien life. Edmondson suggests, for example, that ‘an optical telescope of diameter 620 miles (1,000 miles) could resolve an object of diameter one kilometre (0.62 miles) at a distance of 100 light-years.’
Vakoch concludes his introduction with the monumental task awaiting scientists and scholars across the world, but highlights the importance of these studies and research. ‘These scholars are grappling with some of the enormous challenges that will face humanity if an information-rich signal emanating from another world is detected,’ he writes.
‘By drawing on issues at the core of contemporary archaeology and anthropology, we can be much better prepared for contact with an extraterrestrial civilisation, should that day ever come.’
Reported on Forbes.com that “Tall Whites” aliens control the US and have been since the 1940′s. Information surfaces as NSA whistleblower Edward Snowden is still on asylum in Russia. Claims are that Snowden leaked this jaw dropping information. If you believe this or not, I think it should raise an eyebrow as Iran is up to “something”.…
Documents leaked by NSA whistleblower Edward Snowden conclusively prove that the United States has been ruled by a race of tall, white space aliens who also assisted the rise of Nazi Germany in the 1930s.
These revelations about our alien overlords might not cost you any sleep. But the part that should concern you a tad is that the UFO story was just published by the Fars News Agency, the English-language news service of Iran, a nation that may be very close to acquiring nuclear weapons.
This being a crazy conspiracy theory, naturally the Russians are behind it. The alleged alien invasion was revealed in an alleged report by Russia’s FSB spy agency, which found “incontrovertible proof’ that an ‘alien/extraterrestrial intelligence agenda’ is driving U.S. domestic and international policy, and has been doing so since at least 1945,” said the Iranian news service.
Alien not allowed (Photo credit: Wikipedia)
Fars apparently got the story from a hard-core conspiracy site called whatdoesitmean.com. Here is the gist of the whatdoesitmean.com story as best I understand it (or as the alien mind-control lasers allow me to understand it):
Snowden, who has been given asylum in Russia, leaked documents that a race of extraterestrial “tall whites” arrived on Earth, helped Nazi Germany build a fleet of advanced submarines in the 1930s, and then met in 1954 with President Dwight Eisenhower “where the ‘secret regime’ currently ruling over America was established.”
“Most disturbingly, this FSB report warns, is that the ‘Tall White’ agenda being implemented by the ‘secret regime’ ruling the United States calls for the creation of a global electronic surveillance system meant to hide all true information about their presence here on earth as they enter into what one of Snowden’s documents calls the ‘final phase’ of their end plan for total assimilation and world rule.”