The James Webb Space Telescope (JWST), launched in December 2021, has delivered a tidal wave of observations of the early universe. These observations are a critical step toward understanding the birth and evolution of the first generations of stars.

The Renaissance Simulations trace the evolution of early galaxies  until they reach epochs observable by JWST. By directly comparing simulation results with Webb’s data, researchers can test how well their theoretical models agree with observations of the early universe. Together, JWST and the Renaissance Simulations provide an unprecedented opportunity to build the first complete history of early star formation.

All Renaissance Simulation datasets used in this work are available for download directly through this website. Making the data openly accessible allows researchers, students, and the broader community to explore the formation and evolution of the first galaxies alongside JWST’s observations.