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Home Q & A Board Science-Related Homework Help Physics
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Tsync Tsync
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8 years ago
Collisions between galaxies are thought to:
A) have never occurred.
B) have stopped about 5 billion years ago.
C) have only occurred between 10 and 15 billion years ago.
D) be extremely rare.
E) be commonplace.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 204 times
3 Replies
Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
You answered my question so timely, I really value that, thank you
Minoring in physics
wrote...
#3
8 years ago
Happy to help Slight Smile
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