
Big Wheel: Giant Milky Way-like galaxy formed unusually soon after the big bang
The Big Wheel galaxy formed 2 billion years after the big bang Weichen Wang A newly-discovered spiral galaxy, dubbed the Big Wheel, formed just 2 billion years after the big bang – far earlier, considering its size, than astronomers thought possible. Themiya Nanayakkara, at Swinburne University of Technology in Melbourne, Australia, says the discovery was…