Stunning Photo Reveals Galaxy With Supermassive Black Hole
At the heart of a brilliant elliptical galaxy sits one of the most massive black holes ever discovered.
A dramatic new image from the Hubble Space Telescope may offer fresh insight into one of the great mysteries of the universe: black holes.
The image shows a bright white orb against a starry black background. Located in the Coma Cluster, about 300 million light years away from Earth, the orb is actually a distant view of the giant elliptical galaxy NGC 4889. At the center of that galaxy lies a sleeping giant: a supermassive black hole that is 21 billion times the mass of our sun.
The size of a black hole can be estimated by its event horizon, or the distance from the center of the black hole at which nothing can escape its gravitational grasp. According to NASA, this giant black