How does Hubble's Law explain the expansion of the universe?

Question

Hazel Asher · Accepted Answer

Hubble's law does not explain the expansion of the Universe. Laws only describe what happens.

Hubble's observations of the red shift provided empirical evidence that the universe is expanding. Hubble's law describes how the rate of expansion increases with distance from the observer. This observations do not explain anything, the observations of Hubble's Law, and the red shift require an explanation. The most common theory that explains the expansion of the Universe observed by Hubble is the Big Bang theory.

Levi Acosta · Answer

undefined The universe is expanding uniformly in all directions, as indicated by Hubble's Law, which states that the velocity at which a distant galaxy is receding from us is directly proportional to its distance from us. Put another way, the farther away a galaxy is, the faster it appears to be moving away from us.

Hazel Asher · Answer

undefined Hubble's Law explains the expansion of the universe by stating that the velocity at which a galaxy is receding from us is directly proportional to its distance from us. This means that the farther a galaxy is from us, the faster it appears to be moving away. This observation supports the idea that the universe is expanding uniformly in all directions, with galaxies moving away from each other as space itself expands.