PBS Space Time PBS Space Time

Telescopes of Tomorrow

Nov 9, 2026 · 16m

Summary

This episode explores the next generation of astronomical observatories, detailing the James Webb Space Telescope's infrared capabilities for observing early universe formation, the Giant Magellan Telescope's use of adaptive optics to correct atmospheric blurring, and the Large Synoptic Survey Telescope's rapid scanning of the sky. The discussion also addresses viewer questions regarding Minkowski spacetime geometry and hypothetical black hole experiments.

Topics discussed

Sponsors: Indeed, Edward Jones, and The Great Courses Plus Introduction: The evolution of telescopes from Galileo to Hubble James Webb Space Telescope: Size, folding design, and launch Webb's infrared capabilities and observing early universe Challenges of infrared astronomy: Diffraction and heat Webb's cooling systems and relationship to Hubble Sponsors: Indeed and Edward Jones Sponsor: Walmart gift guide Giant Magellan Telescope: Construction and aperture size Atmospheric seeing and the need for adaptive optics GMT's adaptive optics technology and laser guide stars GMT's scientific goals: Exoplanets and first stars Large Synoptic Survey Telescope: Speed and field of view LSST capabilities: Tracking motion, asteroids, and supernovae Future of astronomy: Known and unknown unknowns Sponsor: The Great Courses Plus introduction Sponsors: Indeed and Edward Jones Sponsor: Base44 website builder Sponsor: The Great Courses Plus and Patreon thanks Q&A: Minkowski space, causality, and spacetime diagrams Q&A: Black hole experiments and pronunciation corrections Sponsors: Edward Jones and Base44
Listen ad-free on Castria