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 two friends had hiked New Hampshire's challenging Mount Washington trail a month ago. They returned and did it again Sunday after trekking through neighboring peaks in the White Mountains. Both ...

In addition to the Specola at Castel Gandolfo, the Vatican Advanced Technology Telescope, located on Mount Graham in southeast Arizona, is operated by the Vatican Observatory Research Group in ...

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In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky ... At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the ...

Nature of the nebulae In 1610, astronomer Galileo Galilei used the newly invented telescope to ... At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time ...

Despite subzero temperatures, scientists at the Mount Washington Observatory are working hard more than 6,000 feet above sea level. "It is really freaking cold, I guess is the scientific way to ...

Pittsburgh Steelers quarterback Russell Wilson, a pending free agent, indicated that he and the organization have had preliminary conversations about him potentially returning next season.