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Seven possible quasar lenses emerge from AI scan of 800,000 DESI objects

Quasars, distant cores of galaxies powered by supermassive black holes, are among the most luminous objects in the universe. While not uncommon, their brightness can make it difficult to accurately measure the galaxies they reside in. This means scientists must use gravitational lensing to assist in analyzing these bright objects, a method that relies on studying how an object’s strong gravity bends light around its host galaxy. Yet despite their own powerful gravity, quasars that can act as lenses are rare.

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