The first major event of Europa Clipper's journey to Jupiter takes place this weekend as a gravity assist maneuver around the Red Planet.

The former Google chief executive is taking a controlling interest in Relativity Space, which aims to build low-cost, ...

Two Mars gravity assists are expected, and NASA astronauts Suni Williams and Butch Wilmore are finally set to come home from an extended stay on the International Space Station. Here are five space ...

SEE ALSO: Yes, it's true: SpaceX is sending a Tesla Roadster to Mars aboard the Falcon Heavy "Test flights of new rockets usually contain mass simulators in the form of concrete or steel blocks.