Earthquake sensors can detect sonic booms generated by reentering space debris to help track the potentially dangerous ...

China is accelerating its efforts to independently monitor space traffic by launching a second satellite constellation aimed at tracking objects in orbit. The Xingyan, or Star Eye, network is designed ...

Commercial and government satellites are turning one of the world’s most sensitive war plans into something that can be ...

A constellation of classified defense satellites built by the commercial company SpaceX is emitting a mysterious signal that may violate international standards, NPR has learned. Satellites associated ...