Fermi Gamma-ray Space Telescope
Scientists say collisions between dark matter particles might be the cause of a curious excess of gamma-ray light coming from the center of our galaxy.
Scientists studying five years of data from the Fermi Gamma-ray Space Telescope have found the first gamma-ray variable pulsar. But is it really what it seems?
Using an entire galaxy as a lens to look at an object in the far distance, researchers are learning more about powerful jets emitted when matter falls into a black hole.
A record-setting blast of gamma rays from a dying star in a distant galaxy has wowed astronomers around the world. The eruption, which is classified as a gamma-ray burst, or GRB, and designated GRB 130427A, produced light with the highest energy ever measured from such an event.