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Question
Because almost all galaxies show redshifted spectra, we know thatA) our understanding of redshift is wrong.
B) we must be at the center of the universe.
C) the universe is expanding.
D) the sky must be dark at night.
E) the universe is closed.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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B) Their energy appears to be non-stellar synchrotron radiation.
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