Researchers have detected a gamma-ray burst outside of the Milky Way that's unlike any previously observed. There's no satisfying explanation for the mysterious cosmic explosion, but it may be linked to elusive intermediate-mass black holes.
Astronomers are scratching their heads after detecting a bizarre, long-lasting cosmic explosion unlike anything previously observed.
The explosion was a series of repeated outbursts of high-energy radiation, known as a gamma-ray burst. These bursts, ... [3606 chars]

