An ultra-fast flash from the galaxy M82 reveals what may have been a rare "extragalactic magnetar giant flare." ...

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 ...

In October, scientists were stunned by the detection of the brightest gamma ray burst, intense explosions observed in distant galaxies, known to man. Dazzled by its striking flash, scientists aptly ...

Hawai’i (KXAN) – The brightest gamma-ray burst in human history was recently detected, scientists with the American Astronomical Society (AAS) announced on Tuesday. Nicknamed the BOAT, Brightest of ...

Two neutron stars begin to merge in this artist’s concept, blasting jets of high-speed particles. Collision events like this one create short gamma-ray bursts. Credit: NASA’s Goddard Space Flight ...

A bright flash of gamma rays from the constellation Boötes that lasted nearly one minute came from a kilonova, as we described in a new paper. This finding challenges what astronomers know about some ...

LOS ALAMOS, N.M., -- Astronomers announced today the discovery of what may be the lower-energy "poor relations" of cosmic gamma-ray bursts, the fantastically powerful explosions occurring daily in ...

NASA's Neil Gehrels Swift Observatory was peering through eons and eons in September 2021 when it spotted a dramatic explosion, a gamma-ray burst (GRB) that had gone off in the early universe. The ...

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 swept ...

Analysis of data from a lightning mapper and a small, hand-held radiation detector has unexpectedly shed light on what a gamma-ray burst from lightning might look like - by observing neutrons ...