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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100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone
"[Hubble's] breakthrough was made possible by the 100-inch Hooker telescope at Mount Wilson,” said Rich. “Hubble was able to make his discovery because he had access to this state-of-the-art ...
The Calif. observatory that changed how we think about the universe
Using the 100-inch telescope, Hubble looked for stars ... Today, the white domes of Mount Wilson’s telescopes are still ...
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Eight Decades of Astronomical Seeing Measurements at Mount Wilson Observatory
https://doi.org/10.1086/317701 • https://www.jstor.org/stable/10.1086/317701 ABSTRACT The astronomical seeing has been recorded at the Mount Wilson Observatory for ...