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Dark Matter Bends Light from a Distant Quasar - Universe Today
Image credit: SDSS Gravitational lensing happens when the light from a distant object, such as a quasar, is distorted by the gravity of a closer object. Astronomers have discovered just such a lens, where the distortions are so great, they have to be caused by a significant amount of dark matter – the visible material … Continue reading "Dark Matter Bends Light from a Distant Quasar"