Big-Bang echoes unmask a billion-light-year hole around Earth—and it’s stretching space faster
Our galaxy may reside in a billion-light-year-wide cosmic bubble that accelerates local expansion, potentially settling the long-running Hubble tension. Galaxy counts reveal a sparsely populated neighborhood, and “fossil” sound waves from the Big Bang bolster the void scenario, hinting that gravity has hollowed out this region. Confirming the bubble could refine the universe’s age and reshape our grasp of cosmic growth.
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