Edwin Hubble is the namesake for NASA’s Hubble Space Telescope, which has spent decades observing faraway galaxies. NASA via AP. NASA named its flagship space observatory after Hubble, ...

Astronomer Dr. Edwin Powell Hubble (1889 - 1953) sitting in a chair at a desk reading a journal. Image: New York Times Co./Getty Images This article was originally featured on The Conversation .

Edwin Hubble, a renowned astronomer, revolutionized our understanding of the universe. He proved the existence of galaxies beyond the Milky Way and discovered that the universe is expanding. His ...

Edwin Hubble's discovery of a Cepheid variable star in the Andromeda galaxy in 1923 revealed that the universe extends far beyond the Milky Way, fundamentally altering our understanding of the cosmos.