NASA's Swift Observatory re-enters atmosphere after nearly 22 years
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NASA's Neil Gehrels Swift Observatory re-entered Earth's atmosphere on Wednesday above North Sumatra, Indonesia, ending a mission planned for two years that lasted nearly 22.
NASA's Neil Gehrels Swift Observatory has returned to Earth after almost 22 years in space. The spacecraft re-entered the atmosphere on Wednesday, closing a mission that ran more than ten times longer than originally planned.
The U.S. Space Force confirmed that Swift entered the atmosphere at 7:39 a.m. EST above North Sumatra, Indonesia, at roughly 3.4 degrees north latitude and 98.6 degrees east longitude. NASA expected most of the spacecraft to burn up during its descent, though officials acknowledged that some components might have survived the intense heat of re-entry.
Launched in 2004, Swift carried three telescopes that detected different types of light. It was built to study gamma-ray bursts, extremely powerful flashes of high-energy radiation linked to events such as the collapse of massive stars or the merger of compact objects like neutron stars. NASA originally planned for it to operate for just two years.
A key strength was its speed. When Swift spotted an energetic outburst, it could quickly turn its telescopes toward the source and alert observatories worldwide, letting astronomers study brief events before they faded.
Over time its work grew well beyond gamma-ray bursts. Swift helped researchers examine active galaxies powered by supermassive black holes, stars producing powerful X-ray flares, and supernovae. It also studied comets and asteroids in our own solar system. Its re-entry ends a mission that greatly exceeded its planned lifespan.
