Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

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

The sensors used to listen for earthquakes could help protect people from the hazards created by falling spacecraft.

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.

Networks of seismometers pick up on vibrations of debris to map their trajectory on Earth.

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