Scientists have been for centuries studying the formation of life, not only of the earth, but of the entire universe. To do this, they study, among other things, the chemistry of carbon and water, essential elements for the creation of life. Regarding the last one, They try to follow the different variations, or isotopes, that the two elements that compose it have had. (hydrogen and oxygen) from the origin of the universe.
A group of French researchers have analyzed one of the oldest meteorites in our solar system thanks to a method that they have created solely for this work, published in the journal ‘Nature Astronomy’. Thanks to him, they have managed to know what was the isotopic composition in the areas where the Earth originated and the other terrestrial planets during the early solar system.
The results of the research, led by the French National Center for Scientific Research (CNRS, for its acronym in English), show that in the first 200,000 years of our system there were two gas deposits, when the planets had not yet formed. One of the deposits had the solar gas with which all the matter in the system was created, a gas that they have managed to record for the first time thanks to the meteorite.
Water existed before Earth
On the other hand, the second gas reservoir was rich in water vapor and had the isotopic form of terrestrial water. This deposit originated from a massive entry of interstellar water into the hot interior regions of the solar system. This happened after the interstellar envelope collapsed and the protoplanetary disk formed.
Therefore, these results show that Even before the formation of the planets, there was already a gas with an isotopic composition similar to that of terrestrial water. and, therefore, the water of our planet already existed before the first blocks that gave rise to the creation of the Earth were accumulated.
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