The boundary of everything humans can observe stretches roughly 92 billion light-years across, a figure shaped by 13.8 billion years of cosmic expansion since the Big Bang. That number, derived from ...
Add Yahoo as a preferred source to see more of our stories on Google. What shape is the universe? This question is far more intriguing and truly unresolved than any debate over the shape of our planet ...
Scientists have reported the discovery of the largest reliably measured superstructure—an enormous arrangement of galaxies, galaxy clusters, and dark matter linked together by gravity—in the universe.
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