Science & Tech · Space · 5 hrs ago

NASA’s Swift Observatory Reenters Earth’s Atmosphere After Nearly 22 Years

NASA’s Swift Observatory Reenters Earth’s Atmosphere After Nearly 22 Years

NASA’s Neil Gehrels Swift Observatory reentered Earth’s atmosphere above North Sumatra, Indonesia, on November 4, ending its nearly 22-year mission.

Launched in 2004, Swift was built to study gamma-ray bursts, extremely powerful explosions in space.

The observatory was expected to last two years, but it continued operating for nearly 22.

Its three telescopes could detect different kinds of light, and Swift could quickly turn toward sudden events and alert other observatories.

That speed helped scientists study brief cosmic events before they faded, including explosions of dying stars and X-ray flares from stars.

Swift also studied active galaxies, comets and asteroids, leaving astronomers with a wide range of observations.

NASA expected most of the spacecraft to burn up during reentry, though some pieces may have survived; the spacecraft’s mission is now over.

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