Petabyte Cosmic Map Enables Dark‑Energy Tests

ESA’s Euclid team has released 1.7 petabytes of imaging and distance‑measured observations covering ~900 million galaxies across 14% of its planned survey area. That dataset provides three‑dimensional positions for galaxies over 10 billion years, enabling direct reconstruction of the cosmic web and quantitative tests of dark‑energy and dark‑matter models. — A publicly released, petabyte‑scale 3D map of the cosmos changes what empirical claims about dark energy and cosmology are testable and speeds research that can reshape fundamental physics and technology investment priorities.