Oct 22, 2025 Yul So m.dongascience.com A team from Yonsei University has released research that disputes the 2011 Nobel Prize–winning theory that the universe is expanding at an accelerating rate. According to the study, the universe is no longer accelerating but is instead entering a slower expansion phase. The researchers also found that dark energy, once thought to be constant, appears to weaken over time. Professor Lee Young-wook and his colleagues at Yonsei University’s