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Using a natural cosmic magnifying glass, the James Webb Space Telescope may have detected the universe's first generation of stars from 13 billion years ago.
Scientists have detected a starless object 10 billion light-years away that could be the smallest clump of pure dark matter ever observed, supporting a key cosmic theory.
Using a global network of telescopes, astronomers have identified the smallest dark object ever found by observing how its gravity bends light from a distant galaxy.
New images from the James Webb Space Telescope show eight striking examples of gravitational lensing, a cosmic phenomenon that magnifies distant galaxies.
The James Webb Space Telescope has captured eight new images of gravitational lenses, providing stunning visual confirmation of Albert Einstein's century-old theory.
Astronomers discovered a rare Einstein cross with a fifth central image, a unique formation that points to the existence of a massive, unseen dark matter halo.
A rare cosmic alignment has produced five images of a distant galaxy, an anomaly scientists explain by the presence of a massive dark matter halo.
