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 ...

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 ...

For decades, scientists have only inferred dark matter’s existence through its gravitational pull on galaxies, but may now ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Far from our cozy home in the cosmos, stars are performing violent ...

The merger triggered an explosion called a kilonova. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have tracked a high-energy blast ...

The brilliant afterglow of a powerful gamma-ray burst (GRB) has enabled astronomers to probe the star-forming environment of a distant galaxy, resulting in the first detection of molecular gas in a ...

Astronomers just caught a dead star in a distant galaxy throwing a massive temper tantrum. A magnetar in galaxy M82 recently sent a huge burst of gamma rays and other radiation blasting out into space ...

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 ...

An orbiting star begins to eclipse its partner, a rapidly rotating, superdense stellar remnant called a pulsar, in this illustration. The pulsar emits multiwavelength beams of light that rotate in and ...