Our Galaxy’s Black Hole Suddenly Lit Up and Nobody Knows Why

By Becky Ferreira The supermassive black hole that lives at the center of our galaxy has been mysteriously sparkling as of late, and nobody knows the reason. This dark behemoth, known as as Sagittarius A* (Sgr A*), is four million times as massive as the Sun. Though no light escapes its boundaries, astronomers can observe the hole’s …