A strange flash in a distant galaxy first looked like a familiar kind of stellar wreckage, the radioactive afterglow of colliding neutron stars known as a kilonova. Then it brightened again, shifted ...

A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught the "echo" of this gamma-ray burst.

Astronomers have spotted a bizarre cosmic explosion that refuses to play by the rules—and it’s leaving scientists scrambling for answers. GRB 250702B, detected by NASA’s James Webb Space Telescope and ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have witnessed a cosmic explosion that emitted as much energy as 400 billion suns. The event, which has been nicknamed ...

A new study from NASA reveals that a supernova observed nearly two millennia ago expanded inside a pre-formed cosmic cavity, ...

An international group of astronomers using the James Webb Space Telescope (JWST) recorded a unique energy burst of GRB ...

A space explosion detected this summer burned for days on end, making it the longest and most unusual gamma-ray burst ever seen. Gamma-ray bursts are the universe’s most powerful explosions. They ...

Prof. An Tao from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences has proposed a novel "precessing magnetic jet engine" model to explain the peculiar gamma-ray burst ...

Caltech astronomer Mansi Kasliwal and her colleagues were not expecting to chase a mystery that blurred the line between a supernova and a kilonova. Yet that is where the evidence has led after an ...

An international team led by Monash University has uncovered evidence of a rare form of exploding star, helping to shed light on one of the most ...