NASA's Swift observatory, originally launched in 2004, is anticipated to fall back to Earth after an unsuccessful rescue attempt. The telescope, operating for more than two decades, will fall apart during its descent. Most debris will burn up in the atmosphere. Experts forecast that the impact zone may encompass over 80% of Earth's surface. Authorities are observing the scenario to gauge threats to populated zones. The exact location of impact has not been determined. NASA's Swift Observatory Falling to Earth: Who Is Responsible If Debris Results in Harm?