9-12


Galaxy (photo)

0
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Cosmic Collisions

3.333335
Average: 3.3 (3 votes)
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Starry Sky (Lesson Plan)

0
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Solar System (Lesson Plan)

0
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The Sun (Seen from Space)

1
Average: 1 (1 vote)
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The Aurora Borealis (Image)

4
Average: 4 (1 vote)
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Stars in a globular cluster collide

0
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Moltern rocks collide

0
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Milky Way (Image)

1
Average: 1 (1 vote)
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Cosmic Collisions (Lesson Plan)

2.5
Average: 2.5 (2 votes)
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