space debris
Mysterious Meteor Fireballs Illuminate Skies Over Major U.S. Cities
Bright meteor fireballs have been spotted over major U.S. cities, raising questions about their origins and frequency. NASA has confirmed these spectacular sightings.
NASA Alerts: 1,300-Pound Satellite to Fall to Earth on March 10
NASA warns that a 1,300-pound satellite will descend to Earth on March 10 after 14 years in orbit, raising questions about safety and space debris.