With the help of paleontologist Neil Shubin, reporter Emily Graslie and the Field Museum's Paul Mayer we discover that our world is full of ancient coral calendars. Each one of these sea skeletons reveals that once upon a very-long-time-ago, years were shorter by over forty days. And astrophysicist Chis Impey helps us comprehend how the change is all to be blamed on a celestial slow dance with the moon. 

Plus, Robert indulges his curiosity about stopping time and counteracting the spinning of the spheres by taking astrophysicist Neil deGrasse Tyson on a (theoretical) trip to Venus with a rooster and sprinter Usain Bolt.

---

We're cooking up something new and looking to get your feedback. Join our Radiolab for Kids listener panel by taking this 5 minute survey (https://airtable.com/shrjoLpn13qCHlXh0). We're listening and want to create more awesome stories for you and your families!

Radiolab’s newsletter comes out every Wednesday. It includes short essays, recommendations, and other fun ways to interact with the show. Sign up (https://radiolab.org/newsletter)!

Radiolab is supported by listeners like you. Support our show by becoming a member of The Lab (https://members.radiolab.org/) today.

Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected].

Visit the Radiolab for Kids/Terrestrials website to learn more about the show, meet our team,  listen to the songs and discover fun activities, drawing prompts, music how-tos, and games that educators, parents, and families might enjoy together.