Artist's conception of binary black hole merger. Credit: Carl Knox, OzGrav, Swinburne University of Technology Two colossal black hole collisions, detected just a month apart in late 2024, are reshaping how scientists interpret the most extreme cosmic events in the universe. These twin mergers not only provide fresh insight into how black holes form and evolve but also confirm, with unmatched precision, the predictions of Albert Einstein's general theory of relativity. The findings may also