The James Webb Space Telescope (Webb) — the world's largest and most complex science telescope — was successfully launched into space atop a European Ariane 5 rocket on December 25, 2021. The $10 billion revolutionary space observatory — a joint effort between NASA, the European Space Agency, and the Canadian Space Agency — is designed to detect the faint infrared light from the earliest stars and galaxies formed over 13.5 billion years ago.