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Astronomers Unlock the Mystery of Compound Gravitational Lensing by Two Galaxies Introduction of Gravitational Lensing Astronomers from an international team have discovered two galaxies aligned in a way that their gravitational forces create a compound lens. Their study has been  published on arXiv. Previous Research on Gravitational Lensing Gravitational Lensing: Gravitational Lensing occurs when the gravitational field of a massive object, like a galaxy, bends light from a more distant object, such as a quasar. Previous Research: Earlier investigations have identified galaxies or galaxy clusters bending light in alignment with predictions from Einstein 's general relativity. Astronomers observe that such lenses im perfectly distort the light behind them in intriguing  patterns. Discovery of a Compound Lens Elli ptical Galaxies as Lenses Elli ptical galaxies have been observed by some researchers to function as lenses, am plifying the light form objects behind them. What ...