Astronomers say they have taken the measure of the biggest, baddest black
holes yet found in the universe, abyssal yawns 10 times the size of our solar
system into which billions of suns have vanished like a guilty thought
One of these newly surveyed monsters, which weighs as much as 21 billion
suns, is in an egg-shaped swirl of stars known as NGC 4889, the brightest
galaxy in a sprawling cloud of thousands of galaxies 336 million light years
away in the Coma constellation.
Black holes, regions of space where gravity is so intense not even light can
escape it, are among the weirdest of the predictions of Albert Einstein's
curved-space theory of gravity - general relativity - so weird that Einstein
himself did not believe it.