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Astronomie & Astrophysique

Des comètes à l'exobiologie en passant par les trous noirs, le cheminement de l'astram curieux ne peut que vous conduire dans ce forum.

3,790 topics in this forum

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  1. Eclair dans l'espace ?

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  2. Questions sur la gravitation

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  3. Combien y a t-il d'etoiles dans l'univers? 1 2 3

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