Astronomers have employed the Very Energetic Radiation Imaging Telescope Array System (VERITAS) to observe a mysterious gamma-ray emitting source designated HESS J1857+026. Results of the ...

Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of ...

For over a decade, the Fermi Gamma-Ray Space Telescope has mapped a mysterious excess of gamma-ray light in the inner regions of the Milky Way. This unusual glow spans thousands of light-years and ...

Data collected using multiple NSF NOIRLab facilities reveal a gamma-ray burst that lasted more than seven hours and ...

The study of gamma-ray emission from globular clusters (GCs) and their resident millisecond pulsars (MSPs) presents a compelling window into high-energy astrophysics. GCs are densely populated, ...

Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe. These energetic bursts are typically unleashed by the incendiary ...

It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

"If this is a massive star, it is a collapse unlike anything we have ever witnessed before." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Could the universe’s most elusive ingredient have finally betrayed its presence? Almost a century after the first indirect clues, a faint but striking glow, detected by NASA’s Fermi Gamma-ray Space ...

The collision of two lightning-bolts-in-the-making spawned an exceedingly brief but extremely energetic flash of gamma rays. This first-of-its-kind observation may help explain an origin of some of ...