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Un trou noir au centre de notre Galaxie

4.350875
Average: 4.4 (57 votes)
Certified content by Discover the COSMOS (Demonstrator)
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Impact Earth! (updated April 2013)

4.527275
Average: 4.5 (55 votes)
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Investigating Open Clusters (updated April 2013)

4.482145
Average: 4.5 (56 votes)
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Εξερευνώντας τα ανοιχτά σμήνη

4.305085
Average: 4.3 (59 votes)
Certified content by Discover the COSMOS (Demonstrator)
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Θέτοντας σημεία αναφοράς όταν τα πάντα κινούνται - αστρικά ρεύματα

4.285715
Average: 4.3 (56 votes)
Certified content by Discover the COSMOS (Demonstrator)
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Ancient Cosmic Explosions (updated April 2013)

4.526315
Average: 4.5 (57 votes)
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The Shapes of Galaxies (updated April 2013)

4.482145
Average: 4.5 (56 votes)
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Sun4all. Does the Sun Rotate ?

4.375
Average: 4.4 (56 votes)
Certified content by Discover the COSMOS (Demonstrator)
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Systèmes binaires Be Xray

4.525425
Average: 4.5 (59 votes)
Certified content by Discover the COSMOS (Demonstrator)
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Définir un système de référence

4.333335
Average: 4.3 (51 votes)
Certified content by Discover the COSMOS (Demonstrator)
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