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Loading contentThe vast network of filaments and voids into which galaxies and dark matter are organised on the largest scales.
On scales of hundreds of millions of light-years, matter is arranged in a web of dense filaments and sheets surrounding enormous nearly-empty voids, with galaxy clusters at the intersections. Galaxy surveys and simulations reveal the same structure.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
Southern-hemisphere observatory data and imagery (VLT, ALMA partner).