Planetary Radio: Space Exploration, Astronomy and Science

What’s hidden inside planets?

Jan 17, 2024

This week on the podcast, Sabine Stanley, Professor of planetary physics at Johns Hopkins University and author of the book 'What's Hidden Inside Planets?', discusses the amazing things that lie beneath the surfaces of planets. Topics include studying planetary interiors, mantle blobs, plate tectonics on Mars, seismic activity and composition of planets, Jupiter's interior structure, and exploring the internal workings of gas giants and ice giants. The podcast also touches on NASA's Commercial Lunar Payload Services program and the naming origins of space shuttles.

01:13:50

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Episode guests

Sabine Stanley

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Episode notes

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Quick takeaways

Mercury's large iron core was formed through a collision early in its formation.

Studying Venus' interior is challenging due to the lack of seismology, slow rotation, and absence of a magnetic field.

Jupiter does not have a distinct solid core and instead has a fuzzy core that blends with its outer gas layers, challenging traditional models.

Deep dives

Mercury's Giant Core

Mercury has a large core relative to its size due to a possible collision early in its formation that stripped away its mantle. This collision blew off the rocky layer and left behind a large iron core.

Introduction

2min

NASA's Commercial Lunar Payload Services Program Launch

12min

Exploring the Inner Workings of Planets

9min

Understanding the Mystery of Mantle Blobs

2min

Exploring the Internal Workings and Origins of Planets

10min

Plate Tectonics on Mars and Other Planets

3min

Understanding Planetary Interiors: Seismic Activity and Composition

9min

Jupiter's Interior Structure and Metallic Hydrogen

13min

Exploring Planetary Interiors

10min

10.

The Origins of Space Shuttle Names

4min

Venture into the hearts of worlds and uncover how we study planetary interiors this week on Planetary Radio. Sabine Stanley, professor of planetary physics at Johns Hopkins University and author of the new book "What's Hidden Inside Planets?" discusses some of the amazing things that lie under the surfaces of the worlds in our Solar System. But first, Mat Kaplan, senior communications advisor at The Planetary Society, gives an update on the first Commercial Lunar Payload Services mission and the timeline for NASA's Artemis program. We close out this show with Bruce Betts, our chief scientist, as he shares information on our new book, "Casting Shadows: Solar and Lunar Eclipses with The Planetary Society."

Discover more at: https://www.planetary.org/planetary-radio/2024-whats -hidden-inside-planets

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