28585 - de Lucas , 17 ans (BRA) - 2015-04-27 Astronome : "Nemesis Theory"
does anyone know about Nemesis theory ?
28585 -
38467 - Réponse de Emily , 16 ans (FRA) - 2020-11-07
I've heard about it... I wonder if it's possible
Forum Métiers - Astronome - (c) Etudiants du Monde / Students of the World
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