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Science28 octobre 2015
© ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0Inattendu
Comète "Tchouri" : de l'oxygène a été découvert dans son atmosphère
L'oxygène moléculaire retrouvé dans l'atmosphère de la comète est vraisemblablement plus ancien que notre système solaire, qui remonte à 4,6 milliards d'années.
