Dying Supergiant Stars Implicated in Hours-Long Gamma-Ray Bursts (IMAGE)

NASA/Goddard Space Flight Center

Dying Supergiant Stars Implicated in Hours-Long Gamma-Ray Bursts

Caption

GRB 111209A exploded on Dec. 9, 2011. The blast produced high-energy emission for an astonishing seven hours, earning a record as the longest-duration GRB ever observed. This false-color image shows the event as captured by the X-ray Telescope aboard NASA's Swift satellite.

Credit

NASA/Swift/B. Gendre (ASDC/INAF-OAR/ARTEMIS)

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