2023-10-31 10:57:32
Par Tristan Vey
Published on 10/30/2023 at 4:41 p.m., Updated on 10/31/2023 at 9:57 a.m.
The Pacific Ocean seen from the International Space Station. NASA
NARRATIVE – An institute bringing together 16 laboratories from Aix-Marseille University has set itself the objective of tackling this question in the most multidisciplinary way possible.
The question is dizzying: where do we come from? How was our world formed and how did life appear in it? All the great founding myths, all religions, provide their own answers, more or less poetic and metaphorical. The history of science itself is crossed by this irrepressible need to tackle these metaphysical questions. Geologists first traced the history of the Earth and the Sun back to 4.5 billion years ago. Then scientists gradually understood that all the species that roam the planet are the result of a very long and slow evolution. The oldest traces of life date back between 3.5 and 3.8 billion years, and nothing says that there are not even older ones. This precocity nourished the idea that life constituted a fairly natural stage of planetary evolution, as long as the “ good conditions » are met (i.e. a fairly mild temperature)
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#Marseille #quest #origins #life #shape