Astronomers using Hubble discover quasars acting as gravitational lenses

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Date: 2015-02-12 07:18:48 Quasar Radio astronomy Physics Gravitational lens Active galactic nucleus Galaxy Twin Quasar Cloverleaf quasar Astronomy General relativity Gravitational lensing		Astronomers using Hubble discover quasars acting as gravitational lenses Add to Reading List Source URL: phys.org Download Document from Source Website File Size: 36,94 KB Share Document on Facebook

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