A cosmic void could be distorting how we see the universe expand. Sound from the Big Bang may hold the clues. According to astronomers, Earth and the entire Milky Way galaxy might be located within a vast, low-density region of space—essentially a cosmic void—that causes the universe to expand more rapidly in our area compared […]



Summary

Our region of the universe may reside within a vast cosmic void, a low-density area affecting perceived expansion rates. This void could be distorting measurements of the universe’s expansion, making it appear faster locally. Scientists are investigating ancient sound waves from the Big Bang, imprinted in the cosmic microwave background, to understand the true expansion rate. By mapping these sound waves, they hope to determine if our location within the void biases our understanding of the universe’s overall expansion and potentially reconcile conflicting measurements.

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