Registration for the workshop is free but mandatory

As every year, we are organizing a one-day workshop on Exobiology, generally in connection with space missions or from ground observations and with, as always, a more particular look at the molecular aspect. It will take place on May 22, 2025, this time at the CNRS-Michel-Ange in Paris.

Cornélia Meinert will first raise the question of an interstellar origin of the homochirality of prebiotic molecules and living systems. Victor Rivilla will continue on the possible interstellar origin of prebiotic molecules. This molecular complexity will then be addressed at the level of meteorites and asteroids by François-Régis Orthous-Daunay and Zita Martins. Then Christophe Sotin will talk to us about this satellite often called the frozen Earth, Titan, then we will try to see with Cristobal Viedma how an enantioenrichment was possible on Earth in abiotic conditions to access homochiral compounds.

The day will end with a Round Table to try to answer the question "Does homochirality on Earth come from space?"

We hope that many of you will come to discuss this recurring problem of endogenous and exogenous contributions to the origin of life on Earth.

This workshop is supported by the CNES and the CNRS through the interdisciplinary programs Physics and Chemistry of the Interstellar Medium and the National Program of Planetology.

The organizers, Jean-Claude Guillemin, Grégoire Danger, Yann Trolez, Cécile Engrand and Fabien Borget thank Christian Mustin and the CNES for their logistical assistance.

Workshop supported by CNES, PCMI and PNP

Crédit photo en-tête: NASA/JPL-Caltech/STScI