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Neil Gehrels Swift Observatory
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Swift Observatory Mission Ends Amid Orbital Decay
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Latest: NASA Swift Observatory ends 22-year mission
NASA’s Neil Gehrels Swift Observatory officially concluded its 22-year scientific mission on 20 October 2026. The observatory ceased observations as its orbit decayed to less than 275 kilometers, where atmospheric drag—a
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Wandering supermassive black hole discovered far from galaxy center
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