Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

A seven-hour gamma-ray burst, GRB 250702B, stuns astronomers and hints at powerful new cosmic engines still unknown to science.

Learn how new high-resolution images of two nova eruptions offer fresh insight into how these stellar explosions release ...

A Rutgers astrophysicist is helping to solve a cosmic puzzle that has astronomers scratching their heads. The mystery centers ...

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

Using the James Webb Space Telescope (JWST), scientists have finally solved the mysterious origins of the "BOAT," possibly the biggest cosmic explosion since the Big Bang. By solving this cosmic ...

A brilliant flash from deep space once baffled scientists. But now, that mystery has been solved—and it reshapes what we know about the universe’s heaviest elements. Back in December 2004, a massive ...

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly ...

Astronomers using the Hubble Space Telescope have spotted the afterglow of an enormous gamma-ray fireball from a merging pair of stars in a galaxy almost 4 billion light years away. The blasts come in ...