A Supermassive Black Hole At The Center Of The Milky Way Was Born From A Cataclysmic Merger With Another Giant Black Hole Billions Of Years Ago
The black hole spins incredibly fast, at an angle that does not align with the rest of the galaxy. For a long time, astronomers didn't know why that was, but new data from the Event Horizon Telescope has revealed a clue about the black hole's past.