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Gravitational lenses_HERO

Gravitational Lenses

Gravitational Lenses

  • Exhibition Text

    • General relativity describes how space is curved by mass. Around high concentrations of mass, the curvature of space becomes strong enough to make space behave like a lens.

      Some clusters of galaxies act as gravitational lenses, magnifying and distorting the images of background galaxies.

      An ordinary view of galaxies is transformed …

      … just as if we were looking at it through a piece of curved glass.

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American Museum of Natural History

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