Monster Galaxy Cluster Is Biggest Ever in the Early Universe

The most massive collection of galaxies in the early universe has been spotted. Although not the largest collection of galaxies ever found, it holds the record as the largest group in the early universe, appearing surprisingly old for the time. "Of all the structures we've ever seen, this is the most massive in the first 4 billion years of the universe," astronomer Mark Brodwin, of the University of Missouri at Kansas City, said at a news conference unveiling the discovery here at the 47th annua