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Dr. Edwin Hubble: Study of Extragalactic Nebulae, 1939

Introduction: Edwin Hubble

"Equipped with his five senses, man explores the universe around him and calls the adventure Science." - Edwin Hubble

In the early 1920s, most astronomers believed that the Milky Way galaxy made up the whole of the cosmos. But Edwin Hubble changed everything when he came to the realization that the Milky Way is but one of millions of galaxies in a universe that is constantly expanding. In discovering the true nature of the cosmos, Hubble became the founder of observational cosmology.

Who was Edwin Hubble, and what were his contributions to the field of astronomy?

These pages hold the answers to these questions and tell the fascinating story of one man's discoveries.