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Edwin Hubble and the expanding universe

20 Nov 2021, 11:00 UTC
Edwin Hubble and the expanding universe
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Edwin Hubble.
Who was Edwin Hubble?
Happy birthday, Edwin Hubble, born on November 20, 1889. The Hubble Space Telescope bears this astronomer’s name. His work helped define our modern cosmology: our idea of the universe as a whole.
Hubble was a multi-talented man who majored in science as an undergraduate at the University of Chicago. To keep a promise to his dying father, he studied law. He was also an amateur heavyweight boxer, and reportedly turned down the chance to fight professionally. As a graduate student, he returned to science at Yerkes Observatory in Wisconsin. In 1919, he accepted a position at the prestigious Mount Wilson Observatory in California, where he remained until his death in 1953. Shortly before his death, Hubble became the first astronomer to use the newly completed, famous Hale Telescope at the Palomar Observatory near San Diego, California. At the time, the 200-inch (5.1-meter) was among the largest in the world.
Hubble helped astronomers see that we live in an expanding universe, where every galaxy is moving away from every other. This discovery was known as Hubble’s law for many years. At its simplest, the law states that, the more distant the galaxy, the faster it ...

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