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.

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

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

"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 ...

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 ...

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 ...

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 ...

Space scientists have just released spectacular images documenting the death of a star, a process that has been continuously ...