This image from NASA’s James Webb Space Telescope, containing nearly 800,000 galaxies, is overlaid with a map of dark matter, represented in blue. Brighter

Using ultra-sharp imaging from the NASA/ESA/CSA James Webb Space Telescope, astronomers have produced an extremely detailed, wide-area map of mass in the Universe, showing how dark and ordinary matter weave together from galactic filaments to dense clusters.

This image from NASA’s James Webb Space Telescope, containing nearly 800,000 galaxies, is overlaid with a map of dark matter, represented in blue. Brighter