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Science30 avril 2017
© Flickr/KanijomanAtlantico Sciences
Le Luxembourg estime que l'exploitation minière des astéroïdes sera difficile ; Une comète aurait frappé la Terre il y a 13.000 ans
Et aussi : Cassini révèle les secrets de la poussière interstellaire ; Le télescope spatial James-Webb, qui doit remplacer Hubble, sera prêt pour 2018.
Le Luxembourg estime que l'exploitation minière des astéroïdes sera difficile ; Une comète aurait frappé la Terre il y a 13.000 ans
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