The redshift of light from galaxies indicates the universe is expanding. This phenomenon suggests that galaxies are moving away from us, which is a key piece of evidence for the Big Bang Theory.
As evidence supporting the Big Bang Theory, what does the redshift of light from galaxies indicate?(2 points)
Responses
the universe is cooling off
the universe is cooling off
the universe is expanding
the universe is expanding
the universe is 13.8 billion years old
the universe is 13.8 billion years old
the universe is mainly hydrogen
1 answer
2 answers