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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
Astronomers know the universe is expanding because:
A) all stars are moving away from us.
B) galaxies farther away are moving away from us faster.
C) everything is moving away from us.
D) there is a cosmic microwave background.
E) most galaxies are moving away from us.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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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
Slight Smile
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