This is the result of a giant collision between two neutron stars.
NASA, ESA and M. Kornmesser
On May 22, the Hubble Space Telescope detected a gamma ray burst that produced more energy in a half-second than the Sun will produce over its entire 10-billion-year lifetime.
Goddard Space Flight Center, NASA
Gamma ray bursts are high-energy explosions, the brightest and most energetic of all electromagnetic events that take place across the cosmos.