A Big Black Hole

S2 and Sagittarius A* Supermassive black holes have been long steeped in the fixture of astronomical discovery for centuries. First hypothesized in 1971 by Donald Lynden-Bell and Martin Rees, the first supermassive black hole was expected to be located smack-bang in the middle of the Milky Way, named Sagittarius A*. A few years later, scientists…...