For the first time, scientists have detected what appears to be three supermassive black holes swirling together in a galaxy so distant that it existed just over a billion years after the Big Bang. This discovery, published on August 12 in the journal Astronomy & Astrophysics, is the earliest known example of a black-hole triplet — and it could reshape our understanding of how these cosmic giants grew so massive so quickly.“This system is in the very, very early universe,” says Dougal Dobie,...
