Researchers at the University of North Carolina at Chapel Hill have contributed to new insights into the most long-lived cosmic explosion ever recorded. The event was a gamma-ray burst that remained ...

The aftermath of a collapsed and exploded star, a dramatic cosmic event called a supernova. (This is *not* the collapsed star responsible for the historic gamma ray burst described below, which ...

These images taken by NASA’s Hubble Space Telescope reveal a new type of stellar explosion produced by the merger of two compact objects: either two neutron stars or a neutron star and a black hole.

In space, things frequently go boom. And recently, on Oct. 9, astronomers observed an extraordinarily colossal boom. NASA's Swift Observatory, which is specifically designed to spot the most powerful ...

A fizzled example of a gamma-ray burst, the most powerful kind of explosion known in the universe, suggests these outbursts may not always work the way that scientists thought, and that versions of ...