NASA's Swift observatory, originally launched in 2004, is anticipated to fall back to Earth after a rescue mission that was not successful. The telescope, operating for more than two decades, will break apart during re-entry. Majority of the debris will combust in the atmosphere. Experts predict the impact zone could cover over 80% of Earth's surface. Authorities are monitoring the situation to assess risks to populated areas. The exact location of impact remains uncertain. NASA's Swift Observatory Falling to Earth: Who Is Liable If Debris Causes Damage?