reionization

Space & Cosmos

Astronomers find Webb’s data inconsistent with reionization model

Simulation of a galaxy (bright region) ionizing hydrogen gas during the reionization phase. Credit: M. Alvarez, R. Kaehler, T. Abel / European Southern Observatory (ESO). Reionization is a critical period in which the first stars and galaxies change the physical structure of their surroundings and, ultimately, the entire universe. The established theory is that this era ended about a billion…