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 ...

New data on the gamma-ray burst "GRB 221009A", observed in October 2022, confirm theoretical models suggesting that these bursts of exceptionally intense electromagnetic waves generate ...

A rare and vivid atmospheric event has been captured from orbit, offering scientists new insight into how lightning behaves far above Earth’s weather systems. Astronauts aboard the International Space ...

A sudden brightening in observations of the oldest known galaxy has a rather disappointing explanation. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

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 ...

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 ...

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 ...