NASA's Artemis II crewed mission to the moon shows how U.S. space strategy has changed since Apollo -- and contrasts with China's closed program.

The U.S. Space Force is positioning its Space Warfighter Operational Readiness Domain as a cornerstone for maintaining space superiority.

The US has pulled back the curtain on a Cold War spy tool that listening in for decades from a highly unusual orbit. The ...

The US Space Force’s “Resilient GPS” program could have dramatically strengthened GPS reliability—at the same moment adversaries like China have sought to undermine it.

The National Reconnaissance Office just revealed the existence of its "JUMPSEAT" line of spy satellites, eight of which launched to Earth orbit between 1971 and 1987.

A little more than a century ago, the US Army Air Service came up with a scheme for naming the military’s multiplying fleet of airplanes. The 1924 aircraft designation code produced memorable names ...

If you want to put people back on the moon, don’t gut the agency in charge of getting them there. The senator wanted a promise. A solemn vow. For the last six years—or maybe the last decade or quarter ...

Beth Michelson, chief financial officer of NorthStar Earth & Space, has assumed additional responsibilities as president of the company’s U.S. subsidiary. NorthStar said Wednesday Michelson’s ...

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts ...