Gamma rays are high-energy photons produced by some of the most violent events in the universe. We explore this powerful radiation in more detail here.

Sources emitting gamma radiation with photon energies between 100 GeV and 100 TeV are called very-high energy (VHE) gamma-ray sources, while those with photon energies above 0.1 PeV are known as ...

Scientists believe the gamma-ray emission, which lasted over 300 seconds, is the birth cry of a black hole, formed as the core of a massive and rapidly spinning star collapses under its own weight.

Gamma-ray bursts are the brightest explosions the cosmos has to offer, besides the Big Bang—the explosion that happened 13.77 billion years ago that marks the beginning of time. The BOAT was ...

Dynamic Gamma-Ray Emissions in Tropical Thunderclouds. In another study presented in this edition of Nature, Marisaldi et al. [2024] ...

Please join us for a virtual seminar "Developing a theoretical model for the gamma-ray emission from the Sun" by Eleonora Puzzoni on Thursday, April 27 at 11 a.m. Abstract: Despite its very close ...

The gamma ray burst as seen by the European Space Agency’s XMM-Newton observatory. Image: ESA/XMM - Newton/M. Rigoselli (INAF) On October 9, 2022, a gamma ray burst brighter than any before seen ...

Thunderstorms are known to generate gamma rays, the highest energy radiation on Earth. But pinning the burst to a specific bolt is new.

Scientists have been all aflutter since several space-based detectors picked up a powerful gamma-ray burst (GRB) in October 2022—a burst so energetic that astronomers nicknamed it the BOAT ...

The gamma-ray emission would be produced in the star's most violent and energetic flares. INAF-OAPa/S. Orlando Licence type Attribution (CC BY 4.0) ...

Scientists knew of two main types of thunderstorm gamma-ray emissions. Short, intense blasts called terrestrial gamma-ray flashes are so luminous they can be seen from space, and last for mere ...