Astronomers detect sudden awakening of black hole 1m times mass of sun

A black hole that’s more than one million times more massive than the Sun has suddenly woken up at the centre of a distant galaxy, dubbed SDSS1335+0728. The stirring black hole might be the culprit behind the galaxy’s unusual brightening, which has had scientists scratching their heads since 2019. The surge in light output is probably due to the presence of an active galactic nucleus, which occurs when a black hole begins chewing through the material that surrounds it.