An explosion — about 100 times brighter than previously recorded — blinded scientists' instruments. Scientists marveled at the power of the gamma-ray jet, which likely marked the birth of a black hole ...

In the 1960s, the United States, the United Kingdom, and the Soviet Union signed a treaty banning nuclear weapons tests ...

Astronomers have spotted a gamma-ray explosion unlike any they’ve seen before, with the help of multiple telescopes, according to a recent study. They picked up on a gamma-ray burst (GRB) that ...

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were ...

Stars often fall into black holes, and now it seems the opposite can also occur, producing an extra long-lasting explosion as the star is consumed from within ...

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

The aftermath of a collapsed and exploded star, a dramatic cosmic event called a supernova. (This is *not* the collapsed star responsible for the historic gamma ray burst described below, which ...

CAPE CANAVERAL, Fla. (AP) — Scientists have discovered a gamma ray explosion outside our galaxy that’s not only exceptionally powerful, but also long-lasting. Telescopes on Earth and in space — ...

NASA astronomers recently spotted a burst of radiation that was quickly crowned the "BOAT": the brightest of all time. The source of the radiation, which NASA said "swept through the solar system" on ...

WASHINGTON – A powerful stellar explosion detected March 19 by NASA’s Swift satellite has shattered the record for the most distant object that could be seen with the naked eye. The explosion was a ...