James Webb Telescope Challenges Our Understanding of the Universe's Galaxies.

The warped and repeated galaxies seen in some James Webb Space Telescope (JWST) images are the result of gravitational lensing, a phenomenon predicted by Einstein's theory of general relativity. Gravitational lensing occurs when light from a distant object passes through the warped space-time caused by a massive object, causing the light to bend and making the object appear in a different location in the sky. Gravitational lensing can be useful to astronomers in studying the early universe and revealing how matter is distributed in galaxies and galactic clusters.