- Astronomie - Les Galaxies - Documentaire ( 17 )

Une galaxie est un assemblage d'étoiles, de gaz, de poussières et de matière noire, contenant parfois un trou noir supermassif en son centre. Notre galaxies à nous s'appelle la voie lactée.
Mon twitter : https://twitter.com/AstroDeBen

Commentaires (2)

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