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Neil Gehrels Swift Observatory

NASA's Neil Gehrels Swift Observatory is a satellite that studies gamma-ray bursts, the most powerful explosions in the universe, and other cosmic objects and events.

Viewing Posts from November 2nd 2026

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  • NASA’s Swift Observatory Re-Entered Atmosphere

    Artist’s concept of Swift in orbit

    Editor’s Note: NASA updated this article Wednesday, Nov. 4, to reflect confirmation of Swift re-entry. NASA’s Neil Gehrels Swift Observatory re-entered Earth’s atmosphere Wednesday, almost 22 years after launch. At launch, Swift was a first-of-its-kind multiwavelength observatory designed to study the most powerful explosions in the cosmos using its three telescopes.  The U.S. Space Force […]