Laughter is like a language and humans are really good at understanding it.

In this episode, Molly and co-host Milla decode different kinds of laughs, from uncontrollable goofy laughter to chuckles that make others feel good.

They’ll meet laugh experts Sophie Scott and Adrienne Wood and test their knowledge in three rounds of the game show: Laugh Attack!

Plus, a new mystery sound for you to guess!

Come see Brains On live in Washington, DC, Princeton, NJ, and Brooklyn, NY! Get tickets here: brainson.org/events

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Today’s episode is sponsored by:
Sitkaseafoodmarket.com - Use promo code Molly35 to receive $35 off your first order.
Indeed.com/brainson - Receive a $75 sponsored job credit with code brainson

Satellites are like robots in the sky: they monitor the weather, make GPS possible, and take stunning pictures of outer space! But how exactly do they work? When a satellite named Meep Moop gets delivered to Brains On HQ by mistake, Molly and co-hosts Tessa and Fallyn learn all about satellite solar panels, thrusters, and radio waves! Then, they chat with Dr. Moriba Jah about satellite space junk and the importance of keeping space pristine. Plus, a stumper of a mystery sound!

Featured expert:
Dr. Moriba Jah, space environmentalist and professor of Aerospace Engineering and Engineering Mechanics at The University of Texas at Austin. Find him on Instagram at @moribajah and Facebook @Moriba Kemessia Jah

Special thanks to:
Dr. David “Goldy” Goldstein, principal engineer, SpaceX; Colonel., U.S. Air Force, Ret.

Resources:
If you want to hear more about GPS, check out the Brains On episode How does GPS know where you are?

And if you’re curious to learn more about space junk, check out Satellite uses giant net to practice capturing space junk and the video Tracking space junk, both written and hosted by Loren Grush and produced by The Verge.

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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This episode was sponsored by:

Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order. 

Indeed - Use promo code brainson to receive a $75 sponsored job credit

What’s that alluring flute music and what does it have to do with Molly Bloom’s biting new game? Well, there’s only one way to find out. Grab your Smarty Pass to hear Anna and Rosie play Molly’s latest game: Tooth or Dare!

Have you ever seen someone strike a match? The match rubs against a scratchy strip and a split second later – poof! It makes fire! But how does a match work, anyway?

Join Molly and co-host Maxwell as they get all fired up about matches! They’ll explore the three things a fire needs to ignite and learn how lighting a match is just a super fast chemical reaction that sometimes smells like farts. Plus, we’ll hear your hot new names for matches and of course, a new mystery sound!

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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This episode was sponsored by:

Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order. 

Indeed - Use promo code brainson to receive a $75 sponsored job credit

Sand! We use it to make all kinds of things, from spectacular sandcastles to roads and bridges. But where does it come from? And why is the sand on so many beaches disappearing?

In this episode, Molly and co-host Leon head to the beach to explore the secrets of sand. They run into the ultimate sand STAN Sanden Totten and discover what it's made of. Then, they chat with producer Nico Gonzalez Wisler about why beaches are running out of sand. All that, plus a stumper of a new mystery sound!

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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This episode was sponsored by:

Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order. 

Indeed - Use promo code brainson to receive a $75 sponsored job credit

Hypnosis. You’ve seen it in movies, cartoons, and maybe even on stage! But is it real? And if so, what is it?

Join Molly and co-host Jasmine as they uncover the truth about hypnosis and its power to heal. They’ll hear from pediatrician and hypnosis expert, Dr. Daniel Kohen, about what it is and isn’t. (Spoiler alert – it isn’t mind control!) They’ll also chat with 13-year-old Joshua who uses hypnosis to overcome anxiety! Plus, a special appearance from the ghost of Franz Mesmer, a famous practitioner and the man behind the word mesmerizing. Entranced? Stick around for a new and puzzling mystery sound!

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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This episode was sponsored by

Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order. 

Indeed - Use promo code brainson to receive a $75 sponsored job credit

Your teeth are like a squad of superheroes inside your mouth. They help you crunch on carrot sticks, nibble popcorn and chew bubblegum. You’ve probably heard it’s important to brush your teeth to prevent cavities. But what is a cavity? And how do dentists fix them?

Join Molly and cohost Aya on a terrifically toothy adventure, as they explore what causes these pesky little holes in our teeth. They’ll meet a group of rowdy, party-loving bacteria and find out how sometimes, troublemaker bacteria in our mouths can cause cavities. Plus, dentist Dr. Jean Star will help explain how to fix cavities. All that, plus a brand new Mystery Sound!

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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This episode was sponsored by

Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order.

Producers Rosie duPont and Aron Woldeslassie are at the Brains On petting zoo checking out some of the cutest baby animals in the world. It’s there that Rosie realizes that they should play a round of Baby Mystery Sounds! It’s the classic Brains On game Mystery Sound with an adorable twist!

Listener Gideon sent in this brilliant question: “How did ferns survive the dinosaur extinction and are they the same ferns we see now?” Our search for the answer will introduce us to James Frond, international fern of mystery, and take us flying through the air on an airplane’s wing. We’ll also meet a scientist who’s trying to understand how ferns are such strong survivors — by recreating the extinction event that wiped out the dinosaurs! All that, plus a fern-tastic new mystery sound!

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!

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Today’s episode is sponsored by:

•  Sitka Seafood Market - Use promo code Molly35 to receive $35 off your first order.

Dig in with Molly and co-host Audrey as they learn about our extinct ancient relatives, the Neanderthals! With archaeologist and Brains On producer Anna Goldfield as their guide, they’ll learn how Neanderthals were once misunderstood, and how scientists are learning more about them. Explore the wondrous NeanderHALL at Brains On HQ and unearth the truth about these prehistoric humans with Anna and her talkative NeanderDOLL, Paul! Plus, discover the origins of a tricky new mystery sound

Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes every month, and ad-free versions of every episode of Brains On, Smash Boom Best, Moment of Um, and Forever Ago. Visit www.smartypass.org to get your Smarty Pass today!