Explain Hubble s Law and its significance in un... - SS1 Physics Space Physics and Astronomy Question

Hubble's Law states that the velocity at which a galaxy is moving away from us is proportional to its distance. This implies that the universe is expanding, with galaxies moving away from each other. Hubble's Law provides evidence for the Big Bang theory, suggesting that the universe originated from a single point and has been expanding ever since. It also helps determine the rate of expansion, known as the Hubble constant. Understanding Hubble's Law is crucial for unravelling the dynamics and evolution of the universe.