Des chercheurs affirment avoir découvert des acides aminés dans les échantillons de l’astéroïde Ryugu ramenés sur Terre. © Agence d’exploration aérospatiale japonaise

Ingredients of life found on an asteroid

#Ingredients #life #asteroid

In 2019, almost 200 million kilometers from our Earth, a Japanese probe, the Hayabusa-2 probe, landed on a asteroid to collect some samples. Just over five grams in total. Rocks and dust from the soil and subsoil from which the astronomers know how Ryugu. It is considered the most primitive object of the Solar system that researchers have never studied.

From the return of these samples to Earth in December 2020, astronomers are conducting detailed analyses. And they confirm today that they have discovered a significant number of amino acid structures there.
Their name comes from the fact that they have an amine function (NH2) and a carboxylic acid function (COOH). They…” data-image=”” data-url=”https ://” data-more=”Read more”>amino acids. Amino Acids: The Building Blocks of Protein Functions
Proteins can perform a wide variety of functions within the cell or organism.
They may have:
a structural function (such as actin or tubulin that…” data-image=” – cc.jpg” data-url=”” data-more=”Read More”>protein and therefore essential for life – likely to spread to surroundings, carried by dust. Isoleucine structure
Like any amino acid, isoleucine has two functional groups: a carboxyl group (COOH) and an amine group (NH2). Its side chain has the formula:…” data-image=”” data-url= “” data-more=”Read more”>isoleucine and valine structure
Like any amino acid, valine is made up of a COOH group and an NH2 group, which participate in peptide bonds. Its side chain is branched and symmetric…” data-image=”” data-url=”” data-more=”Read More”>valinefor example, amino acids that are considered essential for the functioning of the body. But that is not able to synthesize it alone.

A proof of the extraterrestrial origin of life?

Researchers have long considered that amino acids and others The so-called single covalent bond…” data-image=” /e/ d0e3dc7e1e_76472_molecule.jpg” data-url=”” data-more=”Read more”>molecules organic – may have been brought to Earth by asteroid impacts or comets. But they struggled to prove it due to the pollution Quick meteorites by organic matter, nitrogenous matter, etc.
There are different families like:

organic matter, which constitutes living beings (animals or plants) or…” data-image=” jpg” data-url=”” data-more=”Read more”>matter earthly. This time, they clearly show that this type of molecule essential for life can exist in space.

Which makes researchers even more eager to study the samples taken by the Osiris-Rex mission (POT) on’asteroid bennu. About 60 grams of precious stones that should reach the laboratories in 2023.

Ingredients of life found in samples from asteroid Ryugu

The Hayabusa-2 probe set off in 2014 to study the asteroid Ryugu. And bring some samples back to Earth. Mission accomplished in December 2020. From now on, the researchers will take the time to analyze them. Early results suggest that they are rich in vital ingredients.

article of Nathalie Mayer published on 06/27/2021

Last December, Hayabusa-2, a Japanese Space Agency probe (lol), dropped a capsule on Earth containing just over five grams of valuable samples. those of theasteroid Ryugu. Since then, the teams chosen to analyze them kick with impatience. A little more after the publication of some images of these samples at the end of the year.

Researchers at Okayama University (Japan) received their part in the preview (seven other teams will soon receive their samples) on June 2, 2021. And they immediately measured the amount ofhydrogen atomsCoal and General
Symbol: N Atomic number: 7 Electrons per energy level: 2.5 Atomic mass: 14,007 uIsotopes…” data-image=” 7 /a /57a531d2d3_50012051_suprazote.jpg” data-url=”” data-more=”Read more”>nitrogen artificial rock and sand content
Sand can also be obtained artificially, by…” data-image=”” data- url= “” data-more=”Read more”>sand of Ryugu. Data that was then converted into the amount of water and organic matter that would have likely formed. In the end, large amounts…

Explain the origin of life on Earth.

This work confirms Jaxa’s preliminary observations. It is possible that a significant amount of ice existed on Ryugu. But the analysis has only just begun. The teams will study the samples returned by the asteroid for an entire year. Looking for clues that could explain theorigin of water on earth. And hoping to identify organic matter.

Professor Tachibana Shogo of the University of Tokyo, coordinator of the research effort, hopes that analysis of these samples will produce several pieces of evidence that will provide clues to the origins of the disease. Solar system and life on Earth and how the oceans were created. Especially since in parallel, Rikkyo University researchers (Japan) have just shown that Ryugu is as porous as were the planetesimals that led to the formation of the planets.

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