A supermassive black hole with a mass about three million times more than the sun is wandering through a distant galaxy at speeds of 110,000 miles per hour. Researchers at the Harvard and Smithsonian Center for Astrophysics observed the restless black hole in the galaxy J0437+2456, which sits 230 million light-years from Earth. The team is unclear why the black hole is moving , as they are typically stationary, but ...