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What important observations did the Swift Observatory make?

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The Neil Gehrels Swift Observatory observed more than 2,000 gamma-ray bursts. Its most distant detected burst, GRB 090429B, exploded about 13 billion light-years from Earth. GRB 080319B was powerful enough to have been seen with the naked eye despite being 7.5 billion light-years away. Swift also precisely located the short-lived burst GRB 050509B and made the first observation of a supernova while it was exploding.