Check Out These Gravitational Lenses Imaged by Webb During its First Run

Check Out These Gravitational Lenses Imaged by Webb During its First Run
By Matthew Williams (https://ift.tt/sh4WHLq)

This ESA/Webb Picture of the Month shows eight stunning examples of gravitational lensing. Gravitational lensing, which was first predicted by Einstein, occurs because massive objects like galaxies and clusters of galaxies dramatically warp the fabric of spacetime. When a massive foreground object lines up just so with a background galaxy, the light from the background galaxy bends as it navigates the warped spacetime on its way to our telescopes.

October 7, 2025 at 05:30AM
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