Even though the black hole at the center of the Milky Way is a monster, it’s still rather quiet. Called Sagittarius A*, it’s about 4.6 million times more massive than the sun. Usually, it’s a brooding behemoth. But scientists observing Sgr. A* with the Keck Telescope just observed its brightness blooming to over 75 times normal for a few hours.
Click here for original story, Milky Way’s black hole just flared, growing 75 times as bright for a few hours
Source: Phys.org