Watch the supermassive black hole at the centre of the Milky Way flicker ✨️ Using @NASA 's James Webb Space Telescope (@nasawebb) , Northwestern astrophysicists gained the longest, most detailed glimpse yet of the supermassive black hole at the centre of the Milky Way. The researchers found the swirling disk of gas and dust (or accretion disk) orbiting the central supermassive black hole, called Sagittarius A*, is emitting a constant stream of flares with no periods of rest. The new findings cou