App Store

Google Play

Details page - Device banner - 894x1036

Step into an infinite world of stories

Listen and read

Tinkercast | Wondery


The #1 science podcast for kids and their grown-ups. Hosts Mindy Thomas and Guy Raz share stories about the latest news in science, technology, and innovation. Stories that give kids hope, agency and make us all say "WOW"!

New episodes come out every Monday for free. Listen 1-week early and to all episodes ad-free with Wondery+, Wondery+ Kids on Apple Podcasts, or Amazon Music with a Prime membership or Amazon Music Unlimited subscription.


Wow in the World

Mindy, Guy and the rest of the WOW crew are on the verge of winning their first baseball game all season, and Mindy has a secret weapon to get them over the edge; a bucket of mud! But is this age-old tradition of muddying up baseballs superstition .... or science? It’s the who, when, where, why, how, and WOW of baseball magic!

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.

Baseball's Magic Mud: Superstition or Science? (10/20/25)

Dennis and Reggie interview Post Officer Jellybird! Plus an encore episode of, “Brain Freeze!” 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 10/1/23.

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 (10/19/25)

Dennis and Reggie get a visit from the neighborhood mail carrier and play What’s In This Box! Plus an encore episode of, "The Fish With The Killer Kiss!" 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 9/30/23.

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 (10/18/25)

The inspiration for this episode of Two Whats?! And A Wow! can be found at the end of your arms. It's all about hands! Guy Raz and Mindy will lend a hand (see what we did there?) to sort out the finger facts from the digit deceits. Want more WHATs and WOWs? Visit https://bit.ly/40hR1P0. Did you know you can watch full episodes of Two Whats?! And A Wow! on YouTube and YouTube Kids?! Visit https://bit.ly/3WlHLbk to start watching and WOWing with us!

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! - Lend a Hand (10/17/25)

Wake up and WOW, Wowzers! Mindy, Guy Raz, and the WOW Crew are headed to the morning news! Join them along with anchors Gail Richard Simmon and Bob Ralph Nadar as they search to find the hard-hitting truth behind T-Rex's tiny arms! It's the who, when, how and WOW of T-Rex arms! Originally aired 5/16/22.

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

G-Rex (10/13/25)

Dennis and Reggie read some reviewsies! Plus an encore episode of, “Chill Out(Side)!” 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 9/24/23.

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 (10/12/25)

Dennis and Reggie answer some write-in questions! Plus and encore episode of, "Hot Buttered Popcorn Pee!" 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 9/23/23.

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 (10/11/25)

Get ready to ROAR! In this prehistoric round of Two Whats?! And a Wow, we’re talking all about the WOWs of dinosaurs! Find the facts from the fiction about the T-Rex, Stegosaurs, and MORE! Want more WHATs and WOWs? Visit https://bit.ly/40hR1P0. Did you know you can watch full episodes of Two Whats?! And A Wow! on YouTube and YouTube Kids?! Visit https://bit.ly/3WlHLbk to start watching and WOWing with us! Originally aired 3/14/25.

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! - Dino-Mite! (10/10/25)

Mindy and Guy Raz are getting to the bottom of what happened to all the dinosaurs on their trip to the Yucatan Peninsula in Mexico, when they discover they've traveled back in time 66 million years! What will they discover about the meteoric event that altered life on this planet forever?! It's the Who, What, When, Where, How, and WOW of dinosaurs!! Originally aired 3/7/22.

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

What Happened to the Dinosaurs?! (10/6/25)

Dennis has a slight tea-mergency during breakfast– so he and Reggie make a brand new mug! Plus, an encore of "Long Live Lonesome George!"

Want a chance to be featured on an upcoming episode of WeWow? Dennis wants to hear from YOU! Leave Dennis a message at 1-888-7WOW-WOW, or send him a comment or review on our podcast feed!! Want more WeWow?! Visit https://bit.ly/4g2QjLp for even more WOWs online.

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.

Two Whats?! And A Wow! - Dino-Mite! (10/10/25)

Listen and read

Other podcasts you might like ...