Astronomy Cast Ep. 729: The James Webb Space Telescope By Fraser Cain & Dr. Pamela Gay Streamed live on Sep 30, 2024. Let's talk about that giant telescope that's changing everything. We have been waiting our entire careers to make this episode on the James Webb Space Telescope, AKA the JWST. This historic Observatory was launched just a couple of years ago and it's already overturning our understanding of the early Universe star formation and exoplanets!