A supermassive black hole located 9 billion light-years distant seems to be orbited by a partner black hole. The orbit diminishes, bringing the duo closer to combining. At the center of most galaxies, you can find supermassive black holes billions ...

A long-standing theory claims a supermassive black hole is capable of lots of things, including wandering through space. A black hole alone is scary enough, but imagine one in motion. How is this possible? Recently, astronomers have spotted a supermassive ...