MATT M. MILLER CONTRIBUTOR   The supermassive black hole at the center of the Milky Way galaxy emitted a bizarre flash of light, an astronomer studying the phenomenon said. The flash likely occurred around May 13, and was uncharacteristic of the normal celestial behavior of the black hole, Sagittarius A, at the center of the … Continue reading A Supermassive Black Hole At Our Galaxy’s Center Flared Out, Astronomer Says