Overview
- The map reveals fine filaments, bridges, and small halos in addition to large cluster concentrations.
- Comparisons with visible-matter tracers and X‑ray sources show a tight spatial correspondence in the mapped region.
- The mapped sky area spans a patch near Sextans about 2.5 times the apparent size of the full Moon.
- The dataset includes about twice as many background galaxies as prior Hubble maps of the field, enabling sharper reconstruction of the mass distribution.
- The study, led by Diana Scognamiglio for the COSMOS‑Webb collaboration, is published in Nature Astronomy, with wider coverage expected from ESA's Euclid mission and NASA's Roman telescope.