The James Webb Space Telescope will begin its mission of discovery as soon as Dec. 24. René Doyon, Heidi Hammel and Mike McElwain join us for a conversation about what it may reveal from our solar system to the edge of the universe. Doyon is principal investigator for the telescope’s NIRISS imaging spectrograph, Hammel is vice president for science at the Association of University for Research in Astronomy (AURA) and McElwain of the Goddard Space Flight Center is the JWST Observatory project scientist. What do chief scientist Bruce Betts and a horse have in common? Find out in the What’s Up space trivia contest. There’s always more to explore at https://www.planetary.org/planetary-radio/2021-jwst-pre-launch-rene-doyon-heidi-hammel-mike-mcelwain