Space junk falling out of orbit and crashing toward Earth is a growing threat. Indeed, old satellites and spacecraft parts reenter our planet’s atmosphere more than three times a day. When these ...

Space junk falling out of orbit and crashing toward Earth is a growing threat. Indeed, old satellites and spacecraft parts reenter our planet’s atmosphere more than three times a day. When these ...

Add Yahoo as a preferred source to see more of our stories on Google. Space junk falling out of orbit can be a threat -- now scientists say they have found a new way to track it as it speeds through ...