NASA's Curious Universe What Webb Is Teaching Us About Our Solar System
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Sep 23, 2025 Katherine de Kleer, an assistant professor at Caltech, specializes in solar system studies using the James Webb Space Telescope. She shares how Webb is revolutionizing our understanding of asteroids, icy moons, and volcanic worlds. The discussion highlights Webb's unique infrared capabilities, revealing details about Io's surface and the mineral composition of asteroids. Katherine also emphasizes Webb's role in enhancing knowledge of Jupiter and Saturn's moons and its significance for future space missions, bridging solar system and exoplanet research.
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Asteroids As Time Capsules
- Asteroids preserve chemical signatures from planet formation and can trace where materials originated in the protoplanetary disk.
- Webb helps decode that history by revealing compositions that survive billions of years.
Mineral Forms Reveal Origins
- Mid-infrared observations let Webb identify specific silicate minerals like olivine and their forms on asteroid surfaces.
- Determining mineral form helps infer how close to the Sun the material originally formed.
Connecting Disks To Today's Debris
- Webb studies protoplanetary disks and asteroids using identical spectral signatures, linking planet formation to current solar system remnants.
- This allows direct comparison between materials in young systems and our 4.5-billion-year-old leftovers.