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Astronomy

How Gravitational Lensing Maps Dark Matter Distribution in Galaxy Clusters

Quick fact

Gravitational lensing by galaxy clusters has mapped dark matter in such detail that it reveals substructures and filaments, providing direct evidence for dark matter's presence and its clumpy distribution.

Why this is interesting

Did you know that the light from distant galaxies can be bent by invisible matter, creating distorted images? By decoding these distortions, astronomers can 'see' the invisible. How?