Most gamma-ray bursts—the brightest, most powerful explosions in the universe—are tracked back to the deaths of massive stars. But a new discovery suggests that such enormous explosions can come from ...

A space explosion detected this summer burned for days on end, making it the longest and most unusual gamma-ray burst ever seen. Gamma-ray bursts are the universe’s most powerful explosions. They ...

What followed after the bomber released its deadly cargo changed nuclear history forever. From a fireball that nearly touched the Earth to shockwaves that circled the planet three times, this is the ...

More than 100 million light-years away from Earth, a monstrous black hole turned ravenous this summer. It ended up gulping down a star. This feeding event was so intense that it lasted for at least ...

Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...