Europe’s Euclid space telescope has observed a rare Einstein ring surrounding the galaxy NGC 6505, situated 590 million light-years from Earth. The phenomenon, resulting from gravitational lensing, occurs when light from a more distant galaxy, over 4 billion light-years away, bends around a closer object. Lead author Conor O’Riordan highlights both the rarity and the scientific value of such lenses. Euclid, launched in 2023 with NASA's collaboration, aims to study dark energy and dark matter in the universe, providing crucial data for astronomical research.