First medium sized black hole discovered in Messier 82

(An image of the Messier 82 galaxy showing the medium sized black hole M82 X-1 in the inset – Photo Credit: NASA/H. Feng et al)

For the first time, scientists have measured the mass of a medium sized black hole, confirming their highly debated existence.

Pair of Orbiting Supermassive Black Holes Identified

(Photo Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)

For the first time, a pair of supermassive black holes have been discovered which are currently in orbit around one another.