Though the fire reached the radio towers and parking lot nearby, the observatory remained safe. High up in the San Gabriel Mountains, Mount Wilson Observatory affords terrific views of the ...

On a clear spring evening in Michigan, the stars aligned — just not in the way Upfront Ventures partner Nick Kim expected. He ...

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 ...

Hubble introduced a new, larger perspective when he used the largest telescope in the world at the time, the 2.5-metre Hooker telescope at the Mount Wilson Observatory in California, to precisely ...

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 in ...

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 ...

Edwin Powell Hubble of Mt. Wilson Observatory has at his disposal a 100-inch reflector, world’s largest telescope, and with it he takes longer looks into space than any other man. Before the ...

Reason: Walter Sydney Adams, astute director of Mt. Wilson Observatory in California, said he had observed the Martian atmosphere for water-vapor content, found none or almost none—in any case ...

Firefighting efforts continue on the Eaton Fire that has burned over 14,000 acres and killed at least 17 people as the area finally sees improving weather conditions beginning Thursday.

Crusaders defeat Prince Redwan of Aleppo at Antioch. 1355: The St. Scholastica’s Day riot breaks out in Oxford, leaving ...