This is our final Mailbag episode before all-new stories of science discovery arrive on Friday, October 17. Lindsay and Marshall share behind-the-scenes updates on what’s coming up in Season 11 — plus a special challenge to guess the topics of our first three episodes! Then, astrophysicist Dr. Hakeem Oluseyi (host of NOVA’s Particles of Thought and judge on Netflix’s Baking Impossible) joins us to tackle your big-universe questions: How does your body know you’re in a black hole? How do asteroids form? Why don’t we feel dizzy as Earth spins? And… what dessert would be best to eat in space? Plus we read your reviews, share how to support Tumble, and send in your own guesses and stories. Next time, we kick off a brand-new season of science adventures! LINKS! Patreon: https://www.patreon.com/c/tumblepodcast Yoto cards: https://us.yotoplay.com/products/animal-facts-critter-curiosities-gross-science-pack Audiobook: https://www.sciencepodcastforkids.com/single-post/tumble-media-announces-first-audiobook-collaboration-with-rbmedia Merch store: https://tumblepodcast.dashery.com/

We have a big announcement: Tumble en Español is returning on September 25th! This is a rebroadcast of an episode of Tumble from last season. If you can't wait to hear the Spanish-language version, just go subscribe to Tumble en Español wherever you get your podcasts. Why are there so many axolotls in fishtanks, and so few in the wild? That’s what Maximiliano wants to know. You may have found axolotls in the lush caves of Minecraft, but in real life, they live in the lakes and canals of Xochimilco, near Mexico City. But the species is slowly disappearing from its native habitat. Axolotl veterinarian Horacio Mena takes us on a journey to Xochimilco to find out what scientists are doing to save these adorable amphibians. This material is based upon work supported by the National Science Foundation under Grant No. 2415575. Want to hear Aidee's Album "Nothing Rhymes With Orange?" Just click here. Also don't forget to support Tumble on Patreon by going to patreon.com/tumblepodcast. Our t-shirts can be found at tumblepodcast.dashery.com. Also subscribe to Tumble en Español wherever you get your podcasts, or at https://pod.link/1521514886 You can also find more resources about axolotls on our blog at sciencepodcastforkids.com.

There’s so much happening in the world of Tumble, and we’re excited to share it all with you! Plus we answer questions about plants with the help of plant biologist Carina Baskett. Tumble Yoto Cards  A brand-new pack of 3 cards with Tumble episodes on our most popular themes - Animals, Bugs, and Gross Science - for the Yoto audio player!  Get it 20% off during Yoto’s Back to School sale on educational cards: https://us.yotoplay.com/products/animal-facts-critter-curiosities-gross-science-pack Tumble Science in the Field: Europe Our first ever audiobook featuring science adventure episodes in Europe! Find it where you get  your audiobooks:  Audible , Libro.fm , Hoopla , Audiobooks.com , and more!! Tumble Live Events! Cambridge Science Festival in Cambridge, MA - Sept 21 Princeton Public Library, Thursday September 25th The Andlinger Center for Energy and the Environment, Princeton University. Saturday September 27th Connecticut River Museum in Essex, CT - October 11  Lincoln Center, NYC - February 7, 2025 We can’t wait to see you there.

Is fire a liquid, a solid, or is it even matter at all? And what is the science of asking good questions? Lindsay and Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble's science advisors, and respond to reviews! Somehow, the whole "cats are evil" thing just refuses to die. We want to hear from you! Send us YOUR science questions, and let us know what you think of this mailbag episode! Here's how to do it: Email Lindsay & Marshall at tumblepodcast@gmail.com Upload a voice recording on our website sciencepodcastforkids.com Want to support Tumble on Patreon? Go to patreon.com/tumblepodcast, and for a limited time you can get 75% off the first month using the code BTS2025 at check out! You can also stream Science Songs vol. 1 here, or find the album on Bandcamp here. Our merch store is tumblepodcast.dashery.com, where you can find the bird jacket t-shirt!

This is a summer rebroadcast of an episode of Tumble from a few years ago. How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there were computers, and she made an incredible discovery that would help change the way people thought about the universe - forever. Modern-day astronomer Karen Masters helps us tell her remarkable story. If you like this episode, you'll love our free audio course, "Cataloging the Universe" where you'll learn much more about how Henrietta Leavitt's discovery made a big difference in astronomy - plus, you'll become a skywatcher yourself! "Cataloging the Universe" is more than a podcast. It’s interactive! Each episode - or lesson - in the series contains activities to complete while you listen. Plus, you’ll get discussion questions, graphic organizers, and a star journal to keep your observations in. Check out the series and download all the resources at ⁠our website⁠! Hear more from Karen Masters in the bonus interview episode available to Patrons, when you pledge just $1 a month or more on our ⁠Patreon⁠ to support the show! We have free resources available on ⁠our blog⁠ to learn more about the episode. Also... psssssst.... here's that top secret crossword puzzle!

Do you know why four leaf clovers are so rare? Or if just one side of our brain can fall asleep? Why do fish have different colors, and how big is infinity? Lindsay & Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble’s science advisors, and respond to reviews! (Yes, we’ll talk about cats.)  We want to hear from you! Send us YOUR science questions, and let us know what you think of this mailbag episode! Here’s how to do it: Email Lindsay & Marshall at tumblepodcast@gmail.com Upload a voice recording on our website sciencepodcastforkids.com Donate to Central Texas Flood Relief: bit.ly/tumbletexasfloods Support Tumble on Patreon: patreon.com/tumblepodcast Stream Science Songs Vol. 1 here!

Listen to our brand new album of science songs, and play some games along with us as we celebrate the release of our album: Science Songs Vol. 1! It’s a special summer episode that will get you singing along and testing your knowledge of everything from capybaras to planets! Here’s where you can listen to the full album:  Spotify: Listen on Spotify Apple Music: Listen on Apple Music Bandcamp: Support us on Bandcamp Watch the music video for How Do You Catch a Happy Cappy?  Check out our Dino Map Adventure. Support Tumble on Patreon and get a birthday shoutout for just $5/month. Follow us on Instagram, and subscribe to Tumble’s YouTube channel for full episodes and much more!

Would you fly to the top of a volcano that’s about to erupt at any moment? Volcanologist Helena Buurman did, and survived to tell the tale! In 2008, Helena was monitoring Mount Redoubt in Alaska, when the ground beneath the volcano began to shake. What follows is a tale of volcanic adventure, involving earthquakes, helicopters, and a massive eruption! Tumble is on our summer break right now, working on some exciting new projects. Stay tuned to hear them in our feed! We invite you to invent your own volcano! Find resources to learn more about volcano warning signs and eruptions, on our website at www.sciencepodcastforkids.com We have more from our interview with Helena Buurman for our Patrons who pledge just $1/month or more. To listen, pledge today at patreon.com/tumblepodcast.

What if you found out that there was a tiny, nearly invisible type of plastic pollution that’s found nearly everywhere… but you’d never heard of it! That’s what happened to environmental scientist Jace Tunnell several years ago, and he’s been on a great nurdle hunt ever since! This episode on fighting plastic waste comes with a special bonus: the opportunity to enroll in a “Nurdle Patrol” and lead the Nurdle search in your community! Join the Nurdle Patrol Special Agent Training Course at sciencepodcastforkids.com/nurdles If you want to support Tumble on Patreon, just go to patreon.com/tumblepodcast. Ad-free early access to episodes is just $1/month, and for just $5/month you can get a birthday shout out on our feed! T-shirts and other merch (including merch specific to this episode) are available at the Tumble merch store, at tumblepodcast.dashery.com.

To support the Tumble Joke-ha-thon and win awesome prizes, go here! “Did dinosaurs burp?” Tune into our Season 9 premiere to find out the answer to this stinky question. We’ll hear about dino gasses from returning guest Jessica Whiteside and their potential ecological impact from David Wilkinson. Our dive into dinosaur digestion will lead us to a smelly look at gas in Earth’s past! Listen to our bonus interview episode with Dave to learn more about how he studies the past without a time machine. You can hear it when you support us for just $1 on Spotify or on Patreon on patreon.com/tumblepodcast. Free resources, including a transcript, are available on the blog on our website, sciencepodcastforkids.com Check out our new Tumble t-shirts and merch: https://tumblepodcast.dashery.com/

🎉 We’re getting ready for our biggest live event ever — Sonic Saturday! It’s a day of science, sound, and storytelling in Brooklyn, NY on May 10, and we’re celebrating by rebroadcasting one of the episodes that inspired it all: The Science of Ocean Sounds. 🌊🔊 Come join us (and special guest Dan Saks from Noodle Loaf!) for two interactive shows, hands-on science, and live demos from amazing STEM educators — including accessible science activities for blind and low-vision communities. RSVP ⁠now⁠! And if you can’t be there in person, don’t worry — we’ll have a recording available soon. ------ Explore the sounds of ocean science on a sound scavenger hunt! Tune in as oceanographer Amy Bower takes us to the sea, to show us how she uses sound to study ocean currents and make ocean science accessible for blind and visually impaired people. Listen up and help us search for clues beneath the waves to reveal the secrets of the underwater realm! Ocean data sonifications courtesy of Dr. Jon Bellona at Oregon State University, and the Accessible Oceans project. Learn more about Dr. Amy Bower in our bonus interview episode, available to Patrons who pledge just $1 or more a month to support Tumble, at patreon.com/tumblepodcast. We have free resources to keep exploring the world of ocean science and data sonification with Amy Bower. They’re on the blog at sciencepodcastforkids.com, along with a free transcript.  This episode is the first in a series featuring blind scientists. The material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. ⁠⁠ ⁠⁠ We're also launching a fundraiser! Go visit our donation page ⁠here⁠ to make a tax deductible donation, support your favorite joke tournament contestant, and maybe even win some cool prizes!

Why is the center of a raging storm so… calm? Tumble listener Lydia wants to know what’s really going on in the eye of a hurricane. To find out, we’re flying into the storm — literally — with meteorologist Shirley Murillo! Shirley is a real-life “hurricane hunter” who flies in a specially equipped airplane to collect data from inside the hurricane itself! Discover how hurricanes form, and what keeps the center of the storm calm, and what Shirley learned while flying through Hurricane Katrina, one of the most impactful storms in U.S. history. Buckle up — it's going to be a wild ride! You can find a transcript of the episode and learn more about hurricane hunters on the blog at sciencepodcastforkids.com Send us your science questions to tumblepodcast@gmail.com and leave a review on Apple Podcasts with the help of a grownup! Support the show by becoming a Patreon member for just $1/month! This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

Was there ever nothing in the universe? What is nothing? That’s what listener Aviva wants to know. We turned to particle physicist Dr. Jessica Esquivel to find out! She takes us on a mind-bending journey to ask what existed before the universe began, and how a quantum dance party might have started the Big Bang! This story about subatomic particles, giant magnets, and quantum physics is something that will blow your mind.  You can find a transcript of the episode and learn more about the particle party in nothing on  the blog at sciencepodcastforkids.com Send us your science questions, ideas and songs to tumblepodcast@gmail.com Support the show by becoming a Patreon member, or making a tax-deductible donation to Tumble Education, a 501c3 organization. We also have a new merch store! Go get yourself some stuff! This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

Have you ever wondered what life on Earth would be like without trees? In this episode of Tumble Science Podcast for Kids, we’re exploring that big question with the help of two curious listeners, Rowan and Neesha!  Join Lindsay and Marshall as they talk to plant ecophysiologist Angelica Patterson to uncover the essential role trees play in our world. From providing oxygen to supporting animals and keeping water clean, trees are a crucial part of life as we know it. But could they disappear? And what happens when trees move? Plus, Angelica shares her unique (and surprising!) method for studying trees—spoiler alert: it involves a shotgun! Get ready for a wild journey into forests, photosynthesis, and the impact of climate change on trees. Don’t miss this leafy adventure! Support Tumble on Patreon by visiting patreon.com/tumblepodcast. OR donate to our new non-profit by visiting bit.ly/donatetumble

What does it take to become an inventor? To find out, we spoke with an inventor named Josh Miele about one of his greatest inventions: tactile maps! Tactile maps use braille technology to help blind people explore their neighborhoods with their fingers first. But how does Josh create brand-new inventions? Tune in to find out how inventors bring new ideas to life, and stick around to find out whether birds like wearing denim. This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. If you want to learn more about Josh and all his inventions, go to our blog at sciencepodcastforkids.com, where we've got lots of awesome resources! If you want to make a recurring $5 donation to Tumble, you can go to bit.ly/donatetumble. Or you can support us at any level you like by going here. Or support us on Patreon at patreon.com/tumblepodcast Tumble is brought to you with support from IXL Learning. For a special discount for tumble listeners, go to IXL.com/tumble!

Why do some animals play - and some don’t? That’s what Meredith wants to know. In this special collaboration with Outside/In, we investigate how and why animals - and people! - of all shapes and sizes play. Play scientists Junyi Chu and Jackson Ham help us ask the important questions like: Can you tell an octopus to play? And what can rats teach us about why taking turns is important? It turns out that play is serious science!  This episode is a collaboration with Outside/In from New Hampshire Public Radio, and co-reported with executive producer Taylor Quimby. Taylor recommends the show for older kids and teens, and suggests these family-friendly episodes for listening together. The $1,000 balloon What's living under your porch You can make kids hike, but you can't make them hikers Learn more about animal play on the blog on our website, sciencepodcastforkids.com Support Tumble on Patreon at patreon.com/tumblepodcast. 

Why do capybaras have such big teeth? Adrian had to know! To get to the bottom of this, we spoke to a biologist named Santiago Herrera Alvarez. Capybaras are Internet sensations, and Santiago can't get enough of them! Santiago's questions were even bigger than capybara teeth: how did capybaras, a relative of rodents like mice and rats, get to be so enormous? Tune in for a capybara rodeo, and stick around to find out how one little animal can grow to superstardom. Want to learn more? Go visit us at sciencepodcastforkids.com for videos, resources, and so much more about the world's biggest rodents! If you want to support Tumble on Patreon, go to patreon.com/tumblepodcast. This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

How does vision work? That’s what Junie wants to know. And is it possible to create vision for people who don’t see? We’ll dive into the mysteries of how we see with Lucas Nadolskis, a scientist who became blind when he was five. Lucas is studying how vision works in the brain to understand if it’s possible to see without using your eyes! Intrigued? Listen in to find out more of the mysteries behind the science of vision! This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.

Why are there so many axolotls in fishtanks, and so few in the wild? That’s what Maximiliano wants to know. You may have found axolotls in the lush caves of Minecraft, but in real life, they live in the lakes and canals of Xochimilco, near Mexico City. But the species is slowly disappearing from its native habitat. Axolotl veterinarian Horacio Mena takes us on a journey to Xochimilco to find out what scientists are doing to save these adorable amphibians. This material is based upon work supported by the National Science Foundation under Grant No. 2415575.

Happy New Year! This is a rebroadcast of “Polar Bear Adventure” from Season 8! Join us on an Arctic adventure as we head out onto the sea ice with a polar bear scientist! Andrew Derocher shares exciting stories of flying in helicopters, getting bit by a polar bear cub, and discovering how polar bears are surviving in a warming world. Andrew explains what happens when polar bears move into human towns, in the bonus interview episode. It’s available to Patrons who pledge just a dollar or more a month on patreon.com/tumblepodcast. Teachers! Find a toolkit to share polar bear science with students, on the World Wildlife Fund’s WildClassroom.org. A transcript for this episode and other resources are available on the blog on our website, sciencepodcast.com