The world's most powerful space telescope

The James Webb Space Telescope isn’t just bigger than Hubble — it’s a game changer. Big Think’s resident astrophysicist, Dr. Ethan Siegel, explains why. After a decade in the making, NASA’s JWST delivered its first mind-blowing images in July 2022, and it hasn’t stopped since. With its powerful infrared vision and cutting-edge sunshield, it sees farther and deeper into the cosmos than ever before. From the coldest corners of space to the most distant galaxies, Webb is rewriting the history of the universe.