Inside Planets

Big Picture Science

Science, Technology

4.6 • 986 Ratings

🗓️ 28 April 2025

⏱️ 54 minutes

🔗️ Recording | iTunes | RSS

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Summary

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 Originally aired January 22, 2024 You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Big Picture Science is part of the Airwave Media podcast network. Please contact [email protected] to inquire about advertising on Big Picture Science. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	You're listening to an Airwave Media podcast.
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0:19.5	I'm Matt Kaplan, the host of Safeguarding
0:22.0	sound science, Evolution Edition. Evolution is the unifying principle of biology, yet it still breeds
0:28.6	controversy a century and a half after Charles Darwin. Join us as we meet the passionate
0:34.7	researchers and communicators who are expanding our knowledge
0:38.1	and fighting to keep good science in our schools and politics.
0:42.8	Subscribe to Safeguarding Sound Science on Apple, Spotify, Amazon,
0:47.4	or wherever you like to listen.
0:49.3	Music You've undoubtedly heard that it's not what's outside, but what's inside that counts.
1:05.1	Well, that's an adage that applies to people, but also to planets and moons.
1:09.4	The geologic processes in their interiors determine
1:13.1	things like surface structure and atmosphere. But it's tricky to study their interiors,
1:18.5	which is why for ages some have suggested that our own Earth was hollow. You know, a cavernous
1:24.3	space ideal for exploration. Science fiction writer Jules Verne seized on that idea, and Hollywood followed.
1:33.3	We're still falling!
1:37.1	It's unthinkable, but he must be sure.
1:38.8	A man took some tools and went where no human being had ever set foot,
1:42.7	alone, went into the interior of the earth.
1:46.7	We've since learned, of course, that the Earth has a molten metal core, and we're thankful for
	...

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