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Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953) US astronomer. In 1925, he published his classification of galaxies and his discovery that spiral nebulae were resolvable as independent star systems. Using the telescope at Mount Wilson Observatory, he measured theits own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.

Edwin Powell Hubble

Science and Its Times: Understanding the Social Significance of Scientific Discovery
COPYRIGHT 2001 The Gale Group Inc.

Edwin Powell Hubble

1889-1953

American Astronomer

Edwin Hubble's contributions opened the way to modern cosmology, the study of the universe. He first realized that many of the nebulae, often seen only as faint fuzzy patches in the sky, were actually separate galaxies like our own Milky Way. He also discovered that the universe is expanding. This eventually led to the theory that it began in a massive explosion known as the Big Bang.

Hubble was born on November 20, 1889, in Marshfield, Missouri. As an undergraduate at the University of Chicago, he earned degrees in