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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Jet Propulsion Lab and Mount Wilson Observatory closed amid Eaton fire
It's hard to understate the importance of Mount Wilson to the field of astronomy: It is home to the 100-inch Hooker telescope, which Edwin Hubble used a century ago to make observations that ...
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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 ...
The Calif. observatory that changed how we think about the universe
Not only was the view world-altering, but it was also life-changing for Hubble, who became one of the most well-known names ...