News Black hole 33 times size of Sun discovered 'lurking nearby' Earth is Milky Way's largest Astronomers have made a “once-in-a-lifetime” discovery – the largest known black hole in our galaxy, the Milky Way. Dubbed Gaia BH3, the huge region of spacetime is believed to be 33 times the size of the Sun, according to a new study published April 16, 2024