High Quality Content by WIKIPEDIA articles! In astronomy, voids are the empty spaces between filaments, the largest-scale structures in the Universe, that contain very few, or no, galaxies. Voids typically have a diameter of 11 to 150 Mpc; particularly large voids, defined by the absence of rich superclusters, are sometimes called supervoids. Voids located in high-density environments are smaller than voids situated in low-density spaces of the universe.

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