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 ...

The Mount Wilson Observatory was once home to the world’s largest telescope, and more than a century ago, on Jan. 1, 1925, astronomer Edwin Hubble made one of his most important discoveries at ...

In 1917, with the ocean far off in the distance, Hale’s 100-inch mirror climbed its way up the windy mountain roads toward ...

The Eaton Fire made a run for Mount Wilson on Thursday afternoon. But the Mount Wilson Observatory and the telescope were not damaged, thanks to firefighters' efforts, said L.A. County Fire Chief ...

Edwin Hubble was young and ambitious. At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the new Hooker 100-inch telescope, at the time the largest ...

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 ...

In 1929 at the Mt. Wilson Observatory in California, Edwin Hubble discovered that galaxies were moving away at high speeds. He was, like most people, unaware of LeMaitre's 1927 theory. But ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...