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Cosmology
Explore the universe on its largest scales, including cosmic expansion, its history and the observations behind competing explanations.
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How Gravitational Lensing Maps Invisible Matter
Gravitational lensing turns distorted galaxy images into maps of mass. The maps reveal where unseen matter is inferred, with limits set by geometry and measurement.
Sep 23, 2026 • 3 min readRead the discovery →LATEST
Latest discoveries
New stories, explanations and research from Cosmology.