Scientists have spotted what appear to be two stars whipping around each other near the supermassive black hole at the center of our Milky Way galaxy.
Nearly every large galaxy has a supermassive black hole at its heart. The one in the middle of the Milky Way, called Sagittarius A(asterisk), is about 4 million times more massive than our sun and is relatively quiet, occasionally swallowing gas or dust that comes its way.
