A Milky Way magnetar called SGR 1935+2154 may have just massively contributed to solving the mystery of powerful deep-space radio signals that have vexed astronomers for years.

On 28 April 2020, the dead star — sitting just 30,000 light-years away — was recorded by radio observatories around the world, seemingly flaring with a single, millisecond-long burst of incredibly bright radio waves that would have been detectable from another galaxy.

In addition, global and space X-ray observatories recorded a very bright X-ray counterpart.