Radiation from the brightest cosmic explosion ever seen may have been mixing with gas and dust around its dying star – making the signal last longer.

The mystery behind the brightest explosion ever seen has finally been solved. In October last year, the Earth was hit by a blast that came to be known as the Brightest of All Time or BOAT. It was recorded by telescopes across the world, and scientists have been scrambling to explain it ever since.

Huge event so massive it deposited about a gigawatt of power into the Earth’s upper atmosphere