The astronomers at the University of Valencia have recorded a powerful flare on a magnetar, a neutron star with an extremely strong magnetic field, 13 million light-years away from Earth in a group of galaxies in the Sculptor constellation. It all happened in just 0.16 seconds. 

In a fraction of a second, the flare released energy equivalent to what our Sun emits in 100,000 years. This huge explosion got the nickname "space monster".