Observations by two of the world’s largest telescopes provide strong evidence that a peculiar type of exploding star may be the origin of elusive gamma-ray bursts that have puzzled scientists for more ...

While the origin of gamma-ray bursts — the most powerful explosions known in the universe — remains a mystery, scientists say that the two major varieties, long and short bursts, arise from different ...

Blazars are among the largest and most energetic objects in the universe. Jets of matter ("jets") shoot from the cores of these active galaxies shoot, which are accompanied by huge bursts of gamma ...

Two colossal bubbles of high-energy radiation are careening out of the Milky Way's core, a new analysis of images from NASA's Fermi gamma-ray space telescope shows. The 19 months' worth of data reveal ...

New maps of gamma-ray light streaming in from the sky reveal some surprising sources of this highest-energy form of light, including objects that were never detected before. NASA's Fermi Gamma-Ray ...

There’s a flood of gamma rays coming at us from the centre of the Milky Way, and dark matter smashing apart at the edge of black holes could be partially responsible. Supermassive black holes are ...