Katy Perry and Gayle King are among the famous passengers taking a rocket-powered joyride Monday. But determining the point at which the star-studded crew reaches space isn’t as straightforward as it ...

In "At the Edge of Space," NOVA takes viewers on a spectacular exploration of the Earth-space boundary that's home to some of nature's most puzzling and alluring phenomena: the shimmering aurora ...

Blue Origin is taking a star-studded crew of six female passengers to the edge of space on Monday in one of the most closely watched suborbital space tourism missions in years. The flight will ...