With planets and moons, it’s what’s inside that counts. If we want to understand surface features, like volcanoes, or their history, such as how the planet formed or whether it’s suitable for life, we study their interiors. Astronomer Sabine Stanley takes us on a journey to the centers of Venus, Saturn’s large moon Titan, Jupiter’s moon Io, and of course Earth, to help us understand how they, and the solar system, came to be. 
Guest:
Sabine Stanley - Planetary scientist at Johns Hopkins University and the author of What’s Hidden Inside Planets.
Featuring music by Dewey Dellay and Jun Miyake
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