In August 2019, Scientists spotted that the centre of our own galaxy, The Milky Way became 75 times brighter in just a few hours. It was in the Near-infrared spectrum so wasn’t visible to the ‘naked eye’. This was an increase far greater and faster than ever seen before.
Some Astronomers were at a loss as to how this occurred. Some people speculated that the flare-up was caused by a star falling into the black hole at the centre. The black hole is called Sagittarius A.