SMRTR Science & EngineeringFeb 1, 2026Scientific American

Largest galaxy survey yet confirms that the Universe is not clumpy enough

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The Dark Energy Survey team completed the largest galaxy survey ever conducted, mapping 150 million galaxies over six years using a Chilean telescope to create the most comprehensive cosmic map to date. Their analysis revealed that matter in the Universe is distributed less densely than standard cosmological theory predicts, confirming an ongoing puzzle that challenges scientists' understanding of how gravity should have clustered galaxies together since the Universe's early formation.

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