Overview

• The COSMOS-Web survey database, COSMOS2025, is now publicly available with an interactive viewer for users to search and analyze information on nearly 800,000 galaxies.
• The map covers a 0.54-square-degree field—slightly larger than 7.5 full moons—and peers back up to 13.5 billion years into cosmic history.
• Early-universe observations have uncovered roughly ten times more galaxies at extreme distances than pre-launch models predicted, challenging current theories of galaxy formation.
• Each galaxy entry includes photometry, structural measurements and redshift estimates to support a wide range of astrophysical research.
• The map was assembled from over 10,000 JWST images with precise alignment and bias corrections by the international COSMOS-Web collaboration, which has emphasized openness and global participation since 2007.