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Step into an infinite world of stories

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Tinkercast | Wondery

Wow in the World is the #1 science podcast for kids and families, sharing the most amazing stories in science, technology, and new discoveries happening in the world around us. 

Each week, join hosts Mindy Thomas and Guy Raz as they take curious kids and their grown-ups on a cartoon for the ear journey filled with laughter, adventure, and wow-worthy stories. From the tiniest microbes to the farthest reaches of space, every episode of Wow in the World inspires wonder, fuels imagination, and makes science fun for the whole family. 

New episodes of Wow in the World come out every Monday for free! Plus, each week listeners get even more opportunities to say WOW with two other shows: Two Whats?! And A WOW!, a science-based game show, and WeWow, a rewatch, or should we say relisten, behind-the-scenes talk show hosted by our World Organization of Wowzers president, Dennis, featuring YOUR comments, reviews, and messages! 

🎉 Want to keep the Wow going? Grownups can join the World Organization of Wowzers (W.O.W.) at https://bit.ly/46CDndK to receive quarterly mailings, birthday cards, a welcome kit with a t-shirt, autographed photo of Mindy & Guy Raz, access to 1,000+ digital activities and exclusive access to members-only events! Plus, grownups help support our podcast and our mission to create content and experiences that connect laughter to learning, curiosity to innovation and kids to the WOWs in their world!

Learn more at https://bit.ly/3IsPeBR. 

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Wow in the World

What’s red, rocky, and ready for visitors… in the not-so-distant future? MARS! When Mindy drifts off to sleep, her dreams blast off to outer space—and who’s waiting to greet her on the dusty Martian surface? None other than Emily “The Space Gal” Calandrelli, fresh off her real-life journey as the 100th woman in space! Together, they explore Mars like future astronauts might—growing food, bouncing through its low gravity, and imagining what it would take to actually live there someday. Is life on Mars really possible, or is it only a dream? And what does space travel look like for the next generation of explorers? It’s the WHO, WHEN, WHERE, WHY, HOW, AND WOW in the world of a future on Mars!

For more WOWs online, visit https://bit.ly/3DWotmC. Grownups, help support our podcast and our mission to create content and experiences that connect laughter to learning, curiosity to innovation and kids to the WOWs in their world!

Join the World Organization of Wowzers today and receive quarterly mailings and birthday cards, access to 1000+ digital activities, first dibs at live show tickets, plus a welcome kit with t-shirt and an autograph from Mindy & Guy Raz! Visit https://bit.ly/40xiRrH to sign your Wowzer up for a membership to the World Organization of Wowzers today!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A Guided Tour of Mars with Emily "The Space Gal" Calandrelli (11/10/25)

Dennis and Reggie look at trading cards and read some reviewsies! Plus an encore episode of, “Comets, Ice Age, and Human Civilization!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/22/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (11/9/25)

Reggie pranks Dennis and they answer questions from their devoted listeners. Plus an encore episode, “Dinosaurs’ Puzzling Backbones!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/21/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (11/8/25)

We've got the questions AND answers in this out of this world round of Two Whats?! And a Wow! We're challenging you to find the facts from the fiction about SPACE! Visit https://bit.ly/3owDW5a for more. Originally aired 3/8/24.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Two Whats?! And A Wow! - Give Me Some Space! (11/7/25)

Oh no! A 10ft tall robotic dinosaur is terrorizing the neighborhood! Well, in reality it's just terrorizing Dennis and Mindy is at the controls. But fear not, it's all in the name of science! It's the who, when, where, how and WOW of Robotic Pranking Dinosaurs! Check out Wow in the World activities at https://bit.ly/3V5YCgw. Originally aired 6/10/24.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Robo Dino Chicken! (11/3/25)

Dennis and Reggie read some reviewsies! Plus an encore episode of, “Invasion of the Sea Pickles!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/15/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (11/2/25)

Dennis and Reggie choose nicknames and host a cooking segment. Plus an encore episode, “Astronauts, Clean Up Your Space!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/14/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (11/1/25)

It's the final day of WeWow Creepy Crawly Week! Dennis sure has come a long way from being totally grossed-out by Mindy's pet cockroach! Join Dennis, Reggie, and Smokey for one final creepy crawly encore, "So You've Been Swallowed By A Frog!" Grownups, for more Halloween ideas and activities for your Wowzers, visit https://bit.ly/408pVeL!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow Creepy Crawly Week - Day 5: Roach Revue (10/31/25)

It's Day 4 of WeWow Creepy Crawly Week! Who doesn't love comic book superheroes? Dennis and Reggie tell their creepy crawly new cockroach friend a supernatural spider story, plus an encore of "Slingshot Spider!" Grownups, for more Halloween ideas and activities for your Wowzers, visit https://bit.ly/408pVeL!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow Creepy Crawly Week - Day 4: The Return of Spider-Spider (10/30/25)

It's Day 3 of WeWow Creepy Crawly Week! Even a cockroach has to eat sometimes, and chefs Dennis and Reggie are eager to please. On today's episode, a creepy crawly cooking segment, plus an encore of "The Rise of the Glassy-Winged Sharpshooter!" Grownups, for more Halloween ideas and activities for your Wowzers, visit https://bit.ly/408pVeL!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow Creepy Crawly Week - Day 3: Dennis’s Pest-aurant (10/29/25)

On the next episode of Two Whats?! And a Wow, we really build the suspense. Literally! We’re celebrating famous landmarks from around the world. Mindy & Guy will help you separate the facts from the foolishness about some of the most famous man-made structures on Earth! For more ways to WOW your summer, visit wondery.com/summer-of-wow! And don’t forget to tell us all about your summer WOWs, call us at 1-888-7WOW-WOW for a chance to be featured this summer!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Two Whats?! And A Wow! - Wow Around the World (6/28/24)

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