Do you have stuff? Want to not lose your stuff? Apple's tiny trackers are now essential items. Here's how to make them work best for you.

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

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.

CAPE CANAVERAL, Fla. -- As more and more space junk comes crashing down, a new study shows how earthquake monitors can better track incoming objects by tuning into their sonic booms.