> ScienceA supermassive black hole sitting far outside the core of its host galaxy has ripped apart a passing star, and NASA's Swift Observatory caught the aftermath. The black hole weighs in at roughly a million solar masses and did its damage in a galaxy about 750 million light-years from Earth. How Did The Black Hole End Up A Loose Cannon? Why the black hole ended up so far from a galactic center is still being debated. It may have started in a smaller galaxy that eventually merged into the larger one, getting knocked loose in the process.