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 ...

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 ...

Mount Wilson Observatory was all set to welcome visitors to enjoy next week’s partial solar eclipse, but the weather threw a wrench in that plan. KNX News’ Margaret Carrero spoke to Tom ...

In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. He was researching nebulae, fuzzy patches of light in the sky. In 1924, he announced ...

Home to the largest telescope of its day, Mount Wilson was the site of Hubble's astronomical triumphs. In 1924 he had used the telescope's then colossal 100-inch (254-centimeter) mirror to confirm ...

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 ...

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 ...