Ever wonder if the universe is getting bigger? It is! And Hubble's Law is the key to understanding this cosmic expansion. Simply put, Hubble's Law states that galaxies are moving away from us, and the farther away a galaxy is, the faster it's receding.
Think of it like a loaf of raisin bread rising. As the bread expands, the raisins (representing galaxies) move further apart. The raisins further away from you will appear to move away faster because there's more expanding dough between you and them.
Edwin Hubble, back in the 1920s, observed this relationship between a galaxy's distance and its velocity. This groundbreaking discovery provided crucial evidence for the Big Bang theory and revolutionized our understanding of the universe's evolution. So, next time you look up at the stars, remember Hubble's Law and the constantly expanding cosmos!
