NASA Ends Swift’s Mission at 171 Miles Up as the Gamma Ray Burst Hunter Heads for Re-Entry
Nature World News | 27.10.2026 03:42NASA has ended the science mission of its Neil Gehrels Swift Observatory after the spacecraft sank below 171 miles (275 kilometers), too low for its telescopes to hold steady on targets. Swift made its final observation on Oct. 20, and NASA said Oct. 23 that it expects the observatory to re-enter Earth's atmosphere within the next few weeks, according to NASA.