What do astronomers infer from the motion of the distant galaxies?
A) The Universe is contracting.
B) The Universe is expanding.
C) The Universe is static.
D) The Universe is spinning.
E) None of these choices is correct.

Question

Quizplus · Accepted Answer

Astronomers observe that distant galaxies are moving away from us, which suggests that the Universe is expanding. This observation is supported by the redshift of light from these galaxies, consistent with the predictions of the Big Bang theory.

What Do Astronomers Infer from the Motion of the Distant