Cosmic imprints of supervoids and superclusters from dark energy

Average patches of the CMB through supervoids and superclusters

Figure credit: Granett, Neyrinck & Szapudi. Large-scale structures in tube modified from a Millennium simulation picture.
This website is about our discovery that vast superclusters and supervoids of galaxies, half a billion light-years across, in the Universe cause faint glows and shadows (respectively) in microwaves that pass through them. We interpret this as an effect from dark energy stretching and flattening these structures, working against the usual gravitational tendency for galaxies to pull on each other. For more information, please click on the links at left.

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