Old satellites and other space junk fall toward Earth every day, and the shock waves they create could be used to track their trajectories, according to new research.

As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the Orion spacecraft’s heat shield.

The U.S. Space Force is looking for advanced tech for space-based interceptors that can intercept ballistic missiles during their boost phase. Shown here, a view of Earth from the space shuttle ...

At a time when space is unmistakably a contested warfighting domain, the United States risks slowing its own progress not because of a lack of technology or talent, but because Congress has failed to ...