What is the Hubble flow?
A) Distant superclusters of galaxies are all moving toward Earth on one side and away from Earth on the other, as part of a universal flow of galaxies throughout the universe.
B) Distant superclusters of galaxies are all moving away from Earth at approximately the same speed.
C) Distant superclusters of galaxies are all moving away from Earth, their speed increasing with increasing distance.
D) Distant superclusters of galaxies are all moving away from Earth, their speed decreasing with increasing distance.

Question

Quizplus · Accepted Answer

The Hubble flow refers to the observation that distant superclusters of galaxies are moving away from Earth, with their speed increasing as their distance from Earth increases. This relationship is described by Hubble's Law, which states that the velocity at which a galaxy moves away from us is directly proportional to its distance from us.

What Is the Hubble Flow