NASA’s Fermi finds new feature in brightest gamma-ray burst yet seen

A jet of particles moving at nearly light speed emerges from a massive star in this artist’s concept. The star’s core ran out of fuel and collapsed into a black hole. Some of the matter swirling toward the black hole was redirected into dual jets firing in opposite directions. We see a gamma-ray burst when one of these jets happens to point directly at Earth. Credit: NASA's Goddard Space Flight Center Conceptual Image Lab