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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The final stage of a superkilonova. (Caltech/K. Miller and R. Hurt (IPAC)) Astronomers may have discovered a never-before-seen ...

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 breakthrough study fromRutgers University is offering insights into one of the universe’s most extraordinary phenomena—an enigmatic cosmic explosion that has left scientists in awe. This event, ...

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 ...

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 ...

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a star." When you purchase through links on our site, we may earn an affiliate ...

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 ...