Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...

Wilmore and Williams, both former U.S. Navy test pilots, expected to remain in orbit for about 10 days on the mission, which was called Crew Flight Test (CFT). The main goal was to show that Starliner ...

Five 'mass extinctions' have decimated our planet since it was formed - now scientists claim the answers to two could be written in the stars.

For a decade, a radio signal has puzzled astronomers. Every two hours, a pulse from the constellation Ursa Major travels ...