The number of satellites orbiting Earth is rising fast, thanks to private companies such as SpaceX. But just how big will these "megaconstellations" become? And what problems might they cause? When ...

Earth's orbiting satellites are commonly regarded as if they were suspended in mid-air. It is a fact that they actually ...

WASHINGTON — The U.S. Space Force is working to develop a new generation of military satellites designed to maneuver unpredictably through space, in contrast to the traditional approach of parking ...

A generation ago, when former NASA Administrator Dan Goldin promoted the mantra of a “faster, better, cheaper” approach to the agency’s science missions, critics often joked that NASA could only pick ...