In both interesting and important news in the field of space research, researchers have just discovered water and organic matter in a sample of an asteroid in our solar system. The asteroid in question is called Itokawa and the sample, which is actually a single grain, was taken during the first Hayabusa mission carried out by Jaxa or Japan Aerospace Exploration Agency in 2010.
According to the results, the water and organic matter detected did not come from outside but from the asteroid itself. Researchers at the University of London’s Royal Holloway thus suggest that the space object evolved over a period of billions of years by incorporating water and organic matter in the same way it did. is happening on Earth. According to scientists, the asteroid went through phases of extreme heat, dehydration, but also phases where it broke. He was, however, able to reform and rehydrate using the materials he was able to collect.
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It is known that this study, published in the journal Scientific Reports, also shows that S-type asteroids, that is, those which are most common among those that come to Earth, may contain the primordial components of life. According to specialists, this could change everything we know about the history of life on Earth. Indeed, research has so far focused on type C asteroids.
The Hayabusa mission
According to the explanation of Dr Queenie Chan of the Department of Earth Sciences at the Royal Holloway, the Hayabusa mission was a robotic mission developed by JAXA. Its goal was to bring back samples from a small asteroid close to Earth called Itokawa in order to analyze them in laboratories on Earth.
Dr Chan said that the in-depth study of the sample, dubbed “Amazon”, showed the preservation of primitive organic matter, that is to say that was not heated, but also of organic matter. having been heated, in a space measuring 10 micrometers in length. The part that has been heated indicates that the asteroid has been exposed to a temperature above 600 ° C in the past. But the presence of primitive organic matter nearby shows that it arrived on the surface of Itokawa after the space object cooled.
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A basis for future research
Compared to these results, Dr Chen said these were very interesting since they reveal the most intricate details in the history of an asteroid. These results also show that the evolution of the asteroid is very similar to that of the prebiotic Earth.
Scientists hope that these first results will serve as a basis for the analysis of other samples. The Haybusa 2 mission has just brought back samples of another asteroid named Ryugu last year. We can thus hope for other equally important discoveries in the weeks or months to come.
s https://www.independent.co.uk/life-style/gadgets-and-tech/space/water-asteroid-hayabusa-mission-space-b1812285.html
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https://www.fredzone.org/on-a-decouvert-des-matieres-organiques-sur-un-asteroide-98547
https://news.google.com/__i/rss/rd/articles/CBMiSGh0dHBzOi8vdGhlc2F4b24ub3JnL29yZ2FuaWMtbWF0dGVyLXdhcy1kaXNjb3ZlcmVkLW9uLWFuLWFzdGVyb2lkLzMyOTk1L9IBTGh0dHBzOi8vdGhlc2F4b24ub3JnL29yZ2FuaWMtbWF0dGVyLXdhcy1kaXNjb3ZlcmVkLW9uLWFuLWFzdGVyb2lkLzMyOTk1L2FtcC8?oc=5
2021-03-07 06:57:17Z
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