Which law describes the expansion of the universe?

Edwin Powell Hubble an American astronomer who was a pioneer of astronomy and the Hubble telescope is named after him….

Why is it known as HUBBLE'S law?

noyfb john, wider universe? More space between celestial bodies?

jsh, Thank you Lynne for answering this. Most scientific discoveries/laws are named after the person who discovered them.

noyfb john, nothing is actually something. Kraus.