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 ...

At about 2.7 million years old, the twin stars seem to be fairly young. Scientists said they appear to orbit each other at just the right distance: If they were too spread out, the black hole’s ...

indicating that D9 was actually two stars orbiting each other. "I thought my analysis was wrong," explains Florian Peißker, "but the spectroscopic model covered about fifteen years, and it became ...