Around 1929,Hubble and other astronomers discovered that the light of distant galaxies displayed red shifts relative to the light of nearby stars.This means that ___________________ .
A) all distant galaxies are moving away from Earth at an immense velocity
B) these galaxies are moving away from a fixed light source
C) the whole Universe is expanding
D) A,B,and C are correct.
E) A and C are both correct.
Correct Answer:
Verified
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A)all
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