Astronomers have recorded the biggest explosion ever seen in the universe.

A blast a black hole in a cluster of galaxies 390 million light years away has carved out a crater in the hot gas surrounding it that could hold 15 Milky Ways.

The explosion came from the Ophiuchus cluster, which contains thousands of galaxies but a large galaxy at the centre with a colossal black hole.

Black holes blast out jets of material and energy from their poles.

The first hint of this giant explosion actually came in 2016, but scientists at the time said it could not have been caused by black hole eruption because of the mind-bending amount of energy that would have been needed to carve out such a large cavity in the gas.

Now, radio data from telescopes in Australia and India has confirmed that a mysterious curvature is, indeed, part of a cavity.

The blast is believed to be over by now - there are no signs of jets currently shooting from the black hole.

More information is accessible here.