On the passing of the test act in 1681 he refused to take the required oath except with a reservation.
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.
These simulations show that it is no longer possible to argue that black holes in spiral galaxies do not grow efficiently, study lead author Victor Debattista, of the University of Central Lancashire in England, said in a statement.upermassive black holes are almost incomprehensibly huge, with some containing 10 billion or more times the mass of our own sun. The research team used computer simulations to investigate how such black holes grow, especially in spiral galaxies like the Earth's Milky Way.