Edwin Hubble was born in the small town of Marshfield, Missouri, USA, on November 29th, 1889. In 1898, His family moved to Chicago, where he attended high school. Young Edwin Hubble had been fascinated by science and mysterious new worlds from an early age, having spent his childhood reading the works of Jules Verne (20,000 Leagues Under the Sea, From the Earth to the Moon), and Henry Rider Haggard (King Solomon's Mines), Edwin Hubble was a fine student and an even better athlete, having broken the Illinois State high jump record. When he attended University, Hubble continued to excel in sports such as basketball and boxing, but he also found time to study and earn an undergraduate degree in mathematics and astronomy. Hubble went to study at Oxford University where, instead of studying astronomy, he studied law. However, it didn't take very long for Hubble to realise his passion for astronomy and in 1917 he received a doctorate in astronomy from the University of Chicago.
Hubble returned from a tour of duty in the first World War and immediately began working at the Mount Wilson Observatory in California.
Hubble observed many distant stars and nebulae and came to the conclusion that these were too far away to be part of the Milky Way.
This determined the existence of other galaxies and eliminated the belief that the Milky Way was the Universe. Hubble was also able to measure the distance to nearby galaxies and was able to come to the conclusion that they were moving away from us, thus coming to the conclusion that the Universe is expanding. These discoveries gave birth to the 'Big Bang' theory, if the Universe is expanding, it must have originated from a centre point. Hubble continued work at Mount Wilson until his death in September 1953.