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Nursesn Nursesn
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A month ago

What does a cosmological redshift tell you?



how fast a galaxy is moving away from us



the strength of gravity where the light was emitted



the amount of time dilation caused by a galaxy's motion



how much the universe has expanded since the light was emitted

Textbook 
ASTRO

ASTRO


Edition: 3rd
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chanelstar27chanelstar27
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A month ago
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