Mailbag: Do Space Wormholes Exist?

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 predator to ever walk the Earth did it with a teeny tiny set of arms. Scientists have been coming up with answers for this question for decades ...  Show more

In this final mailbag episode of Summer 2026, Marshall and Lindsay address two listener questions, and learn about a surprising twist of evolution. Plus, listener reviews and comments! To get an invite to the next Tumble meetup, as well as receive birthday shout outs and ad free ...  Show more

The Solve It! for Kids Podcast is on summer break! Enjoy our BEST of the AMAZING Ocean!   You'll hear clips from:  Ep 194 How Do You Do Science at Sea? Ep 200 How Much is there Still to Learn about the Ocean?  Ep 196 How Long Can Humans Live Underwater?  #sciencepodcast #sciencep ...  Show more

This episode is an ear-tickler! Guess your way through eleven mystery sounds — one from a scientist, and ten from listeners like you! Plus, another mystery: what’s making Marc and Sanden dance to the sounds of a door jamb and a printer? Stick around for all these reveals, and the ...  Show more

Looking for some sneaky sound puzzles to solve? Tune in to our all-new mystery sound extravaganza! Join co-host Maggie as she listens to recordings of sounds from Brains On listeners – and tries to figure out what they are. You’ll hear Maggie and her brother Sam go head-to-head i ...  Show more

In honor of National STEM Day, Bobby Wonder teams up with Lucy Wow for a special time-traveling adventure!If you'd like to learn more about the life of William and Caroline Herschell and their amazing discoveries, be sure to check out one of our favorite podcasts, Bedtime History ...  Show more