Astronomers May Have Just Found the Biggest Supermassive Black Hole Ever Detected

Black holes, especially supermassive ones, are really, really big. But recently using a wild technique, astronomers from Durham University discovered possibly the largest one ever detected. The black hole is a whopping 32.7 billion times the mass of our Sun and it resides some 2.7 billion light-years away. And the only reason astronomers were able to tell it was there, is because of a technique called gravitational lensing.