For years, astronomers have sought a way to directly observe the atmospheres of exoplanets, worlds orbiting distant stars.

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 ...