The year’s best celestial event was, without a doubt, April’s solar eclipse. The moon went in front of the sun to cast a 115 mile wide shadow on Earth. A swathe of North America was showered in sudden darkness. In honor of the eclipse, the Radiolab team made a show about the star of the show: the moon.

We think we know the moon — we know that humanity visited it, that it’s a shiny white rotating rock in the sky. But what else really? In today’s episode, the team tells us about the moon’s formation, moon dust, moon-quakes, moon volcanoes, how the moon causes the tides on the Earth, and what the temperature up there is like. Turns out, we’ve barely scratched the surface.

For more, check out Rebecca Boyle’s book, ‘Our Moon: How the Earth’s Celestial Companion Transformed the Planet, Guided Evolution and Made Us Who We Are’

Radiolab was created by Jad Abumrad and is edited by Soren Wheeler. Lulu Miller and Latif Nasser are our co-hosts. Dylan Keefe is our director of sound design. Our staff includes: Simon Adler, Jeremy Bloom, Becca Bressler, W. Harry Fortuna, David Gebel, Maria Paz Gutiérrez, Sindhu Gnanasambandan, Matt Kielty, Annie McEwen, Alex Neason, Valentina Powers, Sarah Qari, Sarah Sandbach, Arianne Wack, Pat Walters and Molly Webster. Our fact-checkers are Diane Kelly, Emily Krieger and Natalie Middleton. Production help from Tanya Chawla. Sound mixing by Joe Plourde.

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Support for Terrestrials is provided by the Simons Foundation, the Arthur Vining Davis Foundations, the Kalliopeia Foundation and the John Templeton Foundation.

Volcanoes on the Moon

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