A distant blast that kept shining for hours instead of seconds has forced astronomers to rethink how some of the universe’s ...

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

"Our study provides a new direction to understand the whole evolutionary history of massive stars toward the formation of ...

Using the Hubble Space Telescope, astronomers have witnessed an infant star 20 times larger than the sun setting interstellar ...

In a massive explosion of a black hole ripping apart a star, a dense gas cocoon was found surrounding the explosion, ...

Scientists may have to rethink their playbook for studying gamma-ray bursts, the most powerful known cosmic explosions, after a blast detected in July set a new record by firing energetic jets for ...

Astronomers may have discovered a never-before-seen cosmic explosion that effectively combines a supernova with a kilonova—the blast that results when two dead, dense stars collide. When massive stars ...

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 ...

Decades in the making, NASA's X-ray timelapse shows a stellar explosion expanding into space at up to 2% the speed of light.

Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major Clovis-era sites, researchers found shocked quartz—evidence of intense heat ...

NASA says that a stellar-mass black hole tore a star apart which created an unusually long-lasting gamma ray burst that has been identified as "GRB 250702B." AccuWeather's Emilee Speck has the story.

Artist's rendition of GRB 250702B's ultra-relativistic jet (moving at nearly the speed of light) escaping from its dusty, massive host galaxy. Astronomers at the University of North Carolina at Chapel ...