Giant hidden black hole discovered only 1.4 billion years after the Big Bang
Black holes are some of the most bizarre objects in the Universe but their existence is a robust prediction of the general theory of relativity of Albert Einstein. Scientists have known for some time that much larger black holes with mass billions of times that of the sun existed as early as a few hundred million years after the Big Bang. An international team of astrophysicists have discovered such a hidden giant black hole.