Friday, November 14, 2025

Machine Learning Discovers Quasars Acting as Lenses

The gravity of a luminous red galaxy (LRG) has gravitationally distorted the light from a much more distant blue galaxy in a wonderful example of a gravitational lens (Credit : ESA/Hubble)

Astronomers have used machine learning to discover seven new quasar lens systems, arrangements where a quasar's host galaxy bends light from a more distant galaxy behind it. The find more than doubles the number of known candidates and demonstrates how artificial intelligence can unearth astronomical needles in haystacks containing hundreds of thousands of objects. A team of researchers are training neural networks on synthetic data to revolutionising the search for these rare natural lenses.



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