Mailbag: What Happens When Galaxies Crash?
In this mailbag episode, astronomer Karen Masters joins Marshall and Lindsay to answer a listener's question: what happens when Andromeda cr...
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Tumble Science Podcast for Kids
Exploring stories of science discovery. Tumble is a science podcast created to be enjoyed by the entire family. Hosted & produced by Lindsay Patterson (science journalist) & Marshall Escamil...
Episodes
20 of 301 episodes
Why Does Earth Have a Magnetic Field?
How did Earth get its magnetic field? And why does it move around? Our listeners have questions about one of Earth’s most mysterious forces....
Mailbag: Do Space Wormholes Exist?
In this mailbag episode, Marshall and Lindsay tackle two listener questions — whether space wormholes are real, and what a fly wing and a ca...
Why Do T. Rexes Have Small Arms?
Why did T. Rex have such tiny arms? That’s what our listener Nora wants to know. We’re going to find out why the biggest, most powerful pred...
Mailbag: Why Does the Left Brain Control the Right Side of Your Body? Are Dinosaurs Reptiles or Birds?
In this final mailbag episode of Summer 2026, Marshall and Lindsay address two listener questions, and learn about a surprising twist of evo...
Tumble Science Podcast for Kids Season 12 Starts September 11!
Why do T. Rexes have tiny arms? Can dogs actually talk? Do we remember dreams or nightmares more? Season 12 of Tumble Science Podcast for Ki...
The Science of Your Favorite Foods [ENCORE]
This is a rebroadcast of a favorite episode of Tumble from season 6. What’s your favorite food? Why does it taste so good? It turns out, wha...
How Do Stem Cells Decide What to Become? ... and Other Questions [MAILBAG]
In this special summer mailbag episode, Marshall and Lindsay help answer three kid questions: How do stem cells decide what to become? How d...
The Secret to Cheetah's Super Speed [Encore]
How do cheetahs get their super speed? We talk to a cheetah scientist to find out why a spotted cat is the fastest animal on Earth. Cheetahs...
The Plastic Pollution Patrol [ENCORE]
This is a rebroadcast of one of our favorite episodes from last season, and one that is particularly timely for the summer! What if you foun...
Are there atoms in a black hole? ... and other questions about space - Summer Mailbag!
What would happen if the Moon disappeared? How big is the universe, really? And what happens to atoms inside a black hole? Marshall and Lind...
How Were Dinosaur Tracks Made?
This is a rebroadcast of one of our favorite episodes from season 10! Ever wondered how dinosaurs left their footprints behind millions of y...
Could a Peacock and Platypus Be Friends? Mailbag + Joke-ha-thon!
You asked, we answered! In this mailbag episode, we're tackling three big kid questions: why does the ground keep spinning after you stop? D...
Pluto and the Planetary Pandemonium - Encore
This is a rebroadcast of one of our favorite episodes from the past! It’s a scientific controversy of planetary proportions! Is Pluto a plan...
Who Works Harder: Ants or Bees?
Both ants and bees work hard. So which one works harder? That’s what our listener Hadi wants to know! So we’re pitting insect against insect...
Are Animals Ticklish? (Mailbag + New song!)
A special “tickle attack” Mailbag edition of Tumble! We’re tackling your questions about whether animals can be tickled, and why we laugh wh...
Do Trees Think?
Do trees think? That’s what our listener Alden wants to know. He has an idea that scientists might study mushroom roots to find out if trees...
What's Dark Matter?
What is dark matter? Why do scientists think it exists? How are they searching for it, and why are they doing it in an underground lab?! Joi...
Who Invented the Peanut Butter & Jelly Sandwich? (with The Past and the Curious)
Who invented the peanut butter and jelly sandwich? And how did it become one of the most famous lunches in America? In this episode, a quest...
Can Axolotls Teach Us to Grow New Hands?
Why do humans usually have five fingers on each hand? And what if one day, we could grow a new finger if we lost one? In this episode, a que...