LE SERGEANT D'HENDECOURT , Louis

La plus récente mission spatiale cométaire, Rosetta, était équipée d'instruments capables de caractériser les molécules organiques de la comète 67P/Tchourioumov-Guérassimenko avec une précision sans précédent. Les spectromètres de masse ont révélé une grande diversité de molécules organiques et indiquent que 67P contient à la fois des entités...

How did life begin? How did the single handedness of the molecular building blocks of the complex trinity – DNA, RNA, and proteins come about? Among all the theories regarding the origin of biomolecular asymmetry, those focusing on asymmetric photochemical processes using circularly polarized light (CPL) in interstellar environments appear to...

This folder includes:*Supplementary Material (.pdf)(Materials and Methods, Figs. S1–S6, Table S1, caption for movie S1)Other supplementary materials available for this manuscript: *Movie S1 (.mp4)*GC×GC chromatograms of ice sample and blank recorded with LECO Corp ChromaTOFTM (.peg)

The delivery of organic matter to the primitive Earth via comets and meteorites has long been hypothesized to be an important source for prebiotic compounds such as amino acids or their chemical precursors that contributed to the development of prebiotic chemistry leading, on Earth, to the emergence of life. Photochemistry of...

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