To celebrate New Year’s Day, there are all kinds of traditions. Some people eat black eyed peas for good luck, some list out resolutions. But here at Terrestrials, we are taking a cue from the wisdom of pets, who are so, so, so good at sleeping. After a short preamble from Lulu, we’ll turn the microphone over to listeners’ furry friends snoring and snoozing in various positions, places, and locations. The piece will be largely wordless, with some narration from listeners describing their pets, and sound designed as a sort of meditation to rest.

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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.

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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Radiolab for Kids and Terrestrials are supported by listeners like you. Support Radiolab by becoming a member of The Lab today.

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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.

Today we bring you an episode from our friends over at Atlas Obscura. It's about something that for centuries people thought was a tall tale, something sailors would occasionally spot out in the waves like mermaids or the Loch Ness monster, but most people on the land didn't think was real. Until one day, when a satellite in the sky was able to solve the case.

Host Dylan Thuras tells us the story of a satellite scientist and a ship captain in search of gigantic swaths of bioluminescence that radiate up from the surface of the sea over thousands of square miles.

For more, check out the Atlas Obscura podcast. It’s an audio guide to the world’s wondrous, awe-inspiring, strange places. In under 15 minutes, it’ll take you to an incredible site, and along the way you’ll meet some fascinating people and hear their stories. Listen Monday through Thursday to explore a new wonder.

Sign up for Radiolab for Kids’s newsletter! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up here.

Radiolab for Kids and Terrestrials are supported by listeners like you. Support Radiolab by becoming a member of The Lab today.

Follow Radiolab on Instagram, X Facebook, Threads and TikTok @radiolab.

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