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Vers l'infini et au-delà !Les yeux dans les étoiles : quelle fraction de l’univers voyons-nous réellement en regardant le ciel la nuit ?
En une chaude nuit du mois d'août vous observez les étoiles filantes, et vous vous dites que la voûte céleste est immense... Pourtant vous ne voyez quasiment rien.
11 juillet 2014