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Neil Gehrels

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Artist's illustration of NASA's Neil Gehrels Swift Observatory in orbit above Earth against a starfield backdrop

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NASA's Swift Observatory Ends Science Mission After Two Decades

NASA's Neil Gehrels Swift Observatory has ended its science mission after descending to an orbit less than 171 miles above Earth, where atmospheric drag made…

Oct 24, 2026 · 3:21 AM2 min readvia NASA Breaking News

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