The Swift Observatory re-entered the atmosphere over Indonesia on November 4, 2026, ending a mission that lasted nearly 22 years.
NASA's Neil Gehrels Swift Observatory re-entered Earth's atmosphere at approximately 7:39 a.m. ET on Wednesday, November 4, 2026. The U.S. Space Force confirmed the reentry occurred over the North Sumatra region of Indonesia, at approximately 3.4 degrees north latitude and 98.6 degrees east longitude.
NASA predicted that while most of the 1.5-tonne (approximately 3,200-pound) spacecraft would burn up during reentry, some components might survive. The reentry path was confined to a band between 20.6 degrees north and 20.6 degrees south latitude.
Regarding potential hazards, NASA previously stated that "the risk of harm coming to anyone on Earth is unlikely, approximately 1 in 2,100." The Aerospace Corporation noted that current orbital debris mitigation standards, updated in 2019, mandate that "uncontrolled reentries have an expected casualty of less than 1 in 10,000," where "casualty" is defined as "serious injury or death."
Launched in November 2004, the Swift Observatory was originally designed for a two-year prime mission to study gamma-ray bursts. The observatory served as a multiwavelength tool for nearly 22 years, observing events ranging from active galaxies to supernova explosions.
NASA reported that "at this point, the spacecraft was no longer able to compensate for the effects of the increased drag and entered safe mode" as solar activity intensified atmospheric drag. On October 20, a partner team at Penn State sent the final kill-switch command to Swift, at which point the observatory officially stopped gathering scientific data.
In July, Katalyst Space Technologies attempted a rescue mission by launching LINK. However, the mission failed after the satellite spun out of control before reaching the Swift observatory.
Swift's mission provided critical data on cosmic explosions, such as capturing the afterglow of gamma-ray burst GRB 221009A. As scientists work to understand how to replace the observatory's role, NASA has issued a Request for Proposals to commercial companies regarding the boosting, servicing, or prolonging of the Hubble Space Telescope. According to NASA's RFP, there is a 10% chance Hubble will plunge out of orbit by 2032 and a 50% chance it will deorbit by 2033, with no replacement expected before the 2040s.
Sources
This article was drafted with AI assistance and checked against the sources above. Company claims are reported as claims. Cover image is AI-generated.
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The Neil Gehrels Swift Observatory re-entered Earth's atmosphere on November 4, 2026, following a failed rescue attempt to raise its decaying orbit.
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