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.

India, Jan. 23 -- A powerful stream of solar energy recently dumped into the Earth, lighting up the skies with brilliant ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—pose a risk to humans when they fall to ...

By mapping areas where seismometers in southern California detected sonic booms, researchers at Johns Hopkins University and ...