Astronomers may have finally solved the mystery behind a nearly two-decade-old cosmic explosion that seemed to break the ...

A collapsing star drives a shock wave out through its own body. The wave reaches the surface and breaks through, dumping ...

Dark matter is known to make up roughly 85% of all mass in the universe, as evidenced by the way galaxies spin and how galaxy ...

Astronomers have detected the most distant very-high-energy blazar ever observed, capturing gamma rays that traveled nearly 8 billion light-years before reaching Earth. The discovery, reported in ...

Astronomers have performed very long baseline interferometry (VLBI) observations of a gamma-ray loud blazar known as TXS 2013+370. The observations, posted November 19 on the arXiv preprint server, ...

Gamma rays are among the most powerful types of radiation in nature and a key area of interest in the search for dark matter, especially for scientists who support the WIMP theory. As per their name, ...

The Swift rescue mission was always risky. NASA awarded Katalyst a $30 million contract less than a year ago to build and launch the Link satellite. NASA said Katalyst had to launch the rescue mission ...

Scientists have learned that thunderstorms create antimatter. Electrons collide with particles to make gamma rays, which then make antimatter.

More information about a mysterious, energetic burst, formally known as a gamma-ray burst (GRB), spotted in space 13 billion light-years away from Earth, has been unveiled. The first sighting of this ...

Scientists traced a mysterious surge of low-energy gamma rays from zinc-70 to magnetic changes occurring inside its nucleus. The breakthrough could improve models of how stars, supernovae, and neutron ...

Thunderstorms host a rich variety of electrical discharges that span time-scales from microseconds to minutes and produce radiation extending from radio waves up to high-energy gamma rays. Intense ...