The Upper Atmosphere Research Satellite that has been befuddling NASA scientists with its unpredictable reentry path has finally fallen back to Earth. We... just don't know where yet exactly. But you're safe to look up now.
Everyone mark your calendar as NASA's Upper Atmosphere Research Satellite may crash back to earth at the end of this week. The date is still TBD, but early estimates suggest Friday will be the big day.
The earth's orbit is a giant wasteland filled with space junk - about 20,000 pieces of debris that are four inches or larger. This space junk doesn't always stay in space; sometimes it falls back to earth.