The Hubble distance-velocity relationship states that
A) all galaxies are being pulled toward a central gravitational attractor in the universe,with the galaxies closest to the center traveling the fastest.
B) the farther away a galaxy is from the Local Group of galaxies,the faster it is traveling toward this group.
C) the farther away a galaxy is from our Galaxy,the faster it appears to be traveling away from it.
D) all galaxies are being repelled by the pressure from the hot central "engine" of the universe,with the ones closest to the center traveling the fastest.

Question

Quizplus · Accepted Answer

The Hubble distance-velocity relationship, also known as Hubble's law, states that the farther away a galaxy is from our Galaxy, the faster it appears to be moving away from us. This is due to the expansion of the universe. The relationship is expressed as v=Hd, where v is the velocity, d is the distance, and H is Hubble's constant. This relationship has been observed through various measurements and is a cornerstone of modern cosmology. Therefore, option C is the correct choice.

The Hubble Distance-Velocity Relationship States That