For decades, the motions of stars near the center of our Milky Way Galaxy have been treated as some of the clearest evidence for a supermassive black hole....
Using data from ESO’s Very Large Telescope (VLT) and Keck telescope, astronomers have discovered a binary star system in the S star cluster close to...
At the center of our Milky Way Galaxy lurks Sagittarius A*, a supermassive black hole that is four million times the mass of the Sun. Recently, two unusual...