In a groundbreaking study, researchers at the University of Missouri (Mizzou) have uncovered evidence that spiral galaxies were more prevalent in the early universe than previously believed. This discovery challenges long-standing astronomical theories about the timeline of galaxy formation.
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“Scientists formerly believed most spiral galaxies developed around 6 to 7 billion years after the universe formed,” explained Yicheng Guo, an associate professor in Mizzou’s Department of Physics and Astronomy and a co-author of the study. “However, our study shows spiral galaxies were already prevalent as early as 2 billion years afterwards. This means galaxy formation happened more rapidly than we previously thought.”
