Edwin P. Hubble was born in 1889 in Missouri, USA. When he was in grammar school, the Hubbles moved to Chicago. Hubble later won a Rhodes scholarship to Oxford, where he studied law. He returned to the United States and went into the field of astronomy. Hubble helped establish what galaxies were in the 1920's. One of the bigger causes for confusion was whether spiral nebulae containing individual stars were in the Milky Way galaxy or separate galaxies. In 1924, he measured the distance to Andromeda, and determined that it was a separate galaxy. Using a delicate spectrograph, Hubble determined the redshift of light from other galaxies, deciding that the universe was expanding.



 Although Hubble died in 1953, Hubble's work is carried on in space with the Edwin Powell Hubble Telescope, mapping the universe.