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 ...

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 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 ...

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 ...

GREENBELT, Md. — Astronomers combining data from NASA’s Swift satellite, the W. M. Keck Observatory in Hawaii, and other facilities have, for the first time, identified gas molecules in the host ...

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 ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. On November 23, 1935, explorer Lincoln Ellsworth, with pilot Herbert Hollick-Kenyon, took off in the Polar Star from ...

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 ...