Giant black hole keeps evading detection
Words by Mike Wall
An enormous black hole keeps slipping through astronomers’ nets. The big galaxy at the core of the cluster Abell 2261, which lies about 2.7 billion light years from Earth, should have an even larger central black hole – a light-gobbling monster that weighs as much as 3 billion to 100 billion Suns, astronomers estimate from the galaxy’s mass. But the exotic object has evaded detection so far.