PBS Space Time PBS Space Time

Telescopes on the Moon

Nov 4, 2026 · 17m

Summary

This episode explores the potential of the Moon as a prime location for astronomical observation, highlighting the Chang'e-3 lander's ultraviolet telescope and the challenges posed by lunar dust and extreme temperatures. The hosts discuss innovative concepts for building massive telescopes on the lunar surface, including mirrors made from regolith and liquid mirror designs using ionic liquids. The segment concludes with a viewer question about extracting energy from black holes and a technical correction regarding the Schwarzschild line element.

Topics discussed

Sponsors: LinkedIn and Gatorade Lite Introduction: Science from the Moon Chang'e-3 Landing and Lunar Science The Lunar Ultraviolet Telescope (LUT) Telescope Aperture and Diffraction Limits Building Large Mirrors on the Moon Challenges: Extreme Temperature Swings Sponsors: LinkedIn and Gatorade Zero Lunar Regolith and Dust Hazards Proposal: Moon Dust Concrete Mirrors Liquid Mirror Telescopes on Earth Ionic Liquid Mirrors for Lunar Use Future Lunar Telescope Missions Conclusion: The Moon as an Observatory Sponsor: 23andMe DNA Analysis Sponsors: LinkedIn and Gatorade Zero Sponsor: Checkout.com Patreon Thanks and Episode Recap Q&A: Energy Extraction in Black Holes Q&A: Spacetime Geometry Near Singularity Sponsors: Checkout.com and LinkedIn
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