Astronomers were monitoring the galaxy 3C 186 when they saw something odd. A supermassive black hole was moving at incredible velocities of more than 1,000 kilometres per second. The black hole ...

Only one other galaxy cluster containing a bright quasar has had a detailed study of its X-ray emitting gas, and this is located much closer to the Earth than 3C 186. In principle, the cooling gas ...

These indicate the one galaxy we're looking at is actually two ... This is likely what caused 3C 186 to shoot off like it did. Researchers believe this sort of imbalance is extremely rare ...