We now know that black holes occur frequently throughout the universe. One Sagittarius A* sits at the center of our galaxy, the Milky Way. In fact, according to NASA most galaxies of a similar size have monster black holes at their center. Sagittarius A* has approximately 4 million times more mass than the Sun.

Strange Universe Like a parasite sucking the life force out of its host, an international group of scientists have determined that a supermassive black hole is starving a galaxy of essential materials to make new stars.

A new paper explores the idea of asteroid-sized objects that may be causing gravitational ripples in our cosmic neighborhood.