When we undertook the space exploration of exoplanets, we were surprised by the incredible diversity of the other planets and other star systems. So the question naturally arises: Is Earth generic or exceptional? And is the life on Earth its specific signature?
The astrophysicist Jean-Pierre Bibring describes how human thought and knowledge evolve with each new discovery.
For more information: You can watch the video “L’évolution chimique vers la vie” (chemical evolution towards life) in the Astrobiology playlist (to obtain French subtitles, click on the CC button).
A recent study by a team at CNRS states that the appearance of the first movements by multi-cellular beings on Earth would appear to be earlier than at first thought. At least this is what is suggested by small fossilised tunnels found in Gabon in rock 2.1 billion years old.