One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
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Edwin Hubble
Edwin Powell Hubble is renowned for determining that there are other galaxies in the Universe beyond the Milky Way, and for observing that the universe is expanding at a constant rate. Hubble was ...
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I Traveled to the Birthplace of the Cheeseburger
And astronomer Edwin Hubble revealed that the Milky Way is ... Located to the northeast of Los Angeles, the city is the ...
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Hubble finds proof that the universe is expanding
The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...
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One large Milky Way galaxy or many galaxies?
A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his ...
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NASA Celebrates Hubble's Discovery of the Expanding Universe
Edwin Hubble's groundbreaking discovery of the expanding universe a century ago, while working at Carnegie Observatories, revolutionized the understanding of the cosmos, revealing the Milky Way as ...