Astronomers have witnessed a young, sun-like star blasting out high-energy gamma radiation for the first time. The observation represents the first evidence that this type of low-mass star, called a T ...

Gamma-rays, the most powerful form of light, may erupt from star explosions called novas surprisingly often, but the way these gamma-rays form remains a mystery, scientists say. High-energy gamma-rays ...

Astronomers have discovered a rare binary star system by following its powerful gamma-ray signal — a find that may remove the element of luck from locating more its kind, a new study reveals. Unlike ...

A surprisingly short gamma-ray burst has astronomers rethinking what triggers these celestial cataclysms. The Fermi Gamma-ray Space Telescope detected a single-second-long blast of gamma rays, dubbed ...

Astronomers using NASA’s Swift satellite and Fermi Gamma-ray Space Telescope are seeing frequent blasts from a stellar remnant 30,000 light-years away. The high-energy fireworks arise from a rare type ...

A bright flash of gamma rays observed March 28 by the Swift satellite may have been the death rattle of a star falling into a massive black hole and being ripped apart, according to a team of ...

An unexpected and powerful new kind of star explosion has been discovered in the heavens: a so-called gamma-ray nova that radiates the most energetic form of light in the universe. A nova is a massive ...

Scientists have detected a short burst of gamma rays from the collision of two neutron stars that put out more energy in a half-second than the Sun could in its 10-billion-year lifespan. Designated ...

A bright flash of gamma rays observed March 28 by the Swift satellite signaled the death of a star falling into a massive black hole, say a team of astronomers. According to their model, a star the ...