This gamma-ray burst has come from two billion light-years away, which means it occurred two billion years ago. Published today in the journal Nature Communications, a new paper reveals that on ...

26 issue of the journal Nature. In the past four years, the team of astronomers working at the Smithsonian's Fred Lawrence Whipple Observatory in Arizona has observed high-energy gamma-ray bursts ...

The gamma-ray burst (GRB) occurred two billion light-years from Earth and illuminated much of the galaxy. Images of the rare and powerful cosmic phenomenon show a halo and "bullseye" like shapes.

The source was a gamma-ray burst, or GRB—the most powerful class of explosions in the universe. The burst triggered detectors on numerous spacecraft, and observatories around the globe followed up.