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GRB 970508

GRB 970508

GRB 970508 was a gamma-ray burst detected on May 8, 1997, at 21:42 UTC; it is historically important as the second GRB with a detected afterglow at other wavelengths, the first to have a direct redshift measurement of the afterglow, and the first... Wikipedia
Start date: May 8, 1997
Distance: 6,000,000,000 ly (1.8×109 pc)