A NASA scientist mysteriously died without any cause of death listed or autopsy — sparking questions about whether he was ...

Ukraine secretly launched two rockets past the edge of space during its ongoing war with Russia, a Ukrainian lawmaker ...

China’s explosive climb in space is jolting America’s intelligence agencies, triggering new warnings about how fast Beijing is moving and how much the United States risks losing in the race above ...

The disappearances and deaths of 10 government workers tied to nuclear or space technology have sparked speculation online.

NASA’s Artemis II program is part of a new global space race. This time, world powers have much bigger ambitions.