Curious about cats? Us too! Join Molly and co-host Lynx as they sniff out the answers to some of your most pressing cat questions. They’ll head to a chaotic cat café to learn the history of house cats, they'll hear a song all about cat breeds, and chat with cat expert Mikel Delgado about catnip, cat naps, and why cats love to lick themselves! Plus a purr-plexing new mystery sound. Subscribe to Smarty Pass for ad-free feeds, bonus episodes, and ticket discounts! Today’s episode is sponsored b...
Jul 16, 2024•31 min•Transcript available on Metacast Molly is working on a musical about trees that live in cities. But she can’t finish her rhymes! So she enlists Ruby and Anna to help. Molly gives them some of her unfinished lyrics and it’s up to them to help her turn a single sentence into a fact-filled musical couplet!
Jul 05, 2024•2 min•Transcript available on Metacast Did you know that more than half the people in the world lives in cities? The hustle and bustle of a city can be awesome, but cities can also be hot and polluted. Luckily, there’s a solution we can all get behind – trees! Join Molly and co-host Nallini as they learn how these magnificent towering giants make our cities better places to live and help fight climate change. They’ll also visit an urban orchard that grows fruit in the middle of Philadelphia. All that plus a tree -mendous mystery soun...
Jun 04, 2024•28 min•Transcript available on Metacast 98.6 degrees is hot. If it were that hot outside, you’d be sweaty and want to go jump in a nice cold pool. But the insides of our bodies are that hot all the time! And that’s because there’s a lot going on in there that creates heat. In this episode, Molly and co-host Saathvik find out how our bodies keep our insides at a nice steady temperature (and why that’s harder to do when it’s hot outside!). And we’ll talk with Dr. Joe Alcock about why humans and lots of other animals get fevers. Plus, a ...
May 28, 2024•25 min•Transcript available on Metacast 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 in a sibling mystery sound battle and listen to podcast producers Nichole Hill and Yowei Shaw struggle to solve some sonic stumpers. Get your listening ears ready for this one! Subscribe to Smarty Pass for ad-free feeds, ...
May 21, 2024•30 min•Transcript available on Metacast Vacuums are full of surprises! Did you know that they blow air out to suck things up? Or that old-fashioned vacuums were so huge, they had to be hauled from house to house by horses?! Join Molly and co-host Baker as they learn all about these awesome appliances. They’ll dig into vacuum history, shrink to the size of air molecules and explore the inside of this curious contraption, and even check out a vacuum museum in Missouri. All that, plus a tricky new mystery sound that will blow you away! S...
May 14, 2024•29 min•Transcript available on Metacast Have you ever wondered why a guitar sounds different from a violin? Or why a banjo is twangy and a cello is mellow? Then this episode is for you! Join Molly and co-host Ellie as they explore the ear-tickling world of string sounds! Together, they’ll learn about sound waves, and visit the Brains On instrument petting zoo, where they'll learn about all the amazing sounds that stringed instruments can make. Plus, a shiny new mystery sound! Subscribe to Smarty Pass for ad-free feeds, bonus episo...
May 07, 2024•27 min•Transcript available on Metacast Looks like Marc has a beautiful new plant but doesn’t know where to put it. Direct sunlight or indirect sunlight? It’s too hard to figure out! But you know what’s not hard to figure out? Whether or not you should play Molly’s new game, Radical Design! Grab your Smarty Pass to see what producers Marc Sanchez and Rosie duPont think homes would look like on other planets!
May 03, 2024•1 min•Transcript available on Metacast Humans have visited the Moon but we’ve never lived there. Could we build a home on our lunar neighbor? Join Molly and co-host Ira as they find out why the Moon can be a dangerous place, and what it would take to live there. We’ll imagine a visit to a lunar hotel, hear about all the stuff humans have left up there and even hear a song sung by the Moon herself! Featured Expert : Phil Plait, astronomer, journalist and author of several books, including, Under Alien Skies: A Sightseer’s Guide to the...
Apr 30, 2024•29 min•Transcript available on Metacast Looking for an escape? Join Molly and co-host Julian as they explore Antarctica! They’ll learn about Antarctica’s massive ice sheets and active volcanoes — plus they’ll meet the largest land animal on the continent! (Hint: it’s black, shiny, and can perch on a pencil eraser!) Then they’ll chat with scientist Dr. Jennifer Mercer about what it’s like to live and work in one the coldest places on the planet and explore what Antarctica was like 90 million years ago. (Hint: It was a lot like a beach ...
Apr 23, 2024•34 min•Transcript available on Metacast Have you ever taken a big ol’ whiff of rotten milk? It probably smelled like dirty socks or stinky garbage. Blech! But why does food go bad, and how can we be sure that something is fresh and safe to eat? Join Molly and co-host Rachel as they explore the world of food expiration dates — those little numbers and dates on food packages that help us figure out how old food is! Together, they’ll find out why food goes bad, listen to a rotten egg sing about the power of the sniff test, and learn abou...
Apr 16, 2024•27 min•Transcript available on Metacast Ouch! If you’ve ever stubbed your toe, gotten a paper cut or fallen off your bike, you know that getting hurt is no fun. Sometimes we can take medicine to help feel better, like ibuprofen. But how does that medicine know where to go in our bodies to stop the pain? In this episode, Molly and kid co-host Skylar explore where pain comes from and chat with expert Dr. Amanda C de C Williams about why it’s useful. Then they’ll eavesdrop on an ibuprofen pill on its first day of work to find out how it ...
Apr 09, 2024•24 min•Transcript available on Metacast Oh no! It looks like Brains On host Molly Bloom and producer Marc Sanchez are in some deep trouble, and the only way to get out of it is with an extra special game of Mystery Sound. Will either of them be able to guess the right sound? Grab your Smarty Pass to find out!
Apr 05, 2024•1 min•Transcript available on Metacast On April 8, a total solar eclipse will be visible on a path that crosses North America, from the west coast of Mexico to the east coast of Canada. In this episode, Molly and co-host Aminah cover all your eclipse essentials: What causes an eclipse? What’s it like to experience one? How do you watch one safely? (Spoiler alert: Don’t stare at the sun without special eyewear. Really. Please. Don’t do it.) Plus, indigenous science educator Nancy Maryboy tells us about Navajo and Cherokee traditions d...
Apr 02, 2024•26 min•Transcript available on Metacast We love a good mystery, and UFOs are magnificently mysterious! But are they real? In this episode, Marc and Sanden take over the Brains On feed with a new episode of their radio show, Hoax Hunters. They’ll look into the myths and hoaxes surrounding UFOs (which stands for unidentified flying objects). Plus, they’ll talk about what kinds of things often get mistaken for UFOs and how you can stay smart and skeptical when hearing shocking information. And of course, an episode about mystery will hav...
Mar 26, 2024•37 min•Transcript available on Metacast Hello friends! We're so excited to announce that Brains On is coming to the east coast! We’re doing three live shows -- in Washington DC, Princeton, New Jersey and Brooklyn, New York! Our live show is a super fun journey through the brain, featuring magic tricks, a game show, mystery sounds and even dancing! You can get tickets at brainson.org/events Plus, after each show, we're having a VIP party, where you can meet and play games with me, Marc and Sanden. And -- if you're not able ...
Mar 19, 2024•1 min•Transcript available on Metacast 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: brain...
Mar 12, 2024•34 min•Transcript available on Metacast 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: D...
Mar 05, 2024•25 min•Transcript available on Metacast 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!
Mar 01, 2024•2 min•Transcript available on Metacast 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 Sm...
Feb 27, 2024•26 min•Transcript available on Metacast 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...
Feb 20, 2024•25 min•Transcript available on Metacast 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 practit...
Feb 13, 2024•30 min•Transcript available on Metacast 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...
Feb 06, 2024•30 min•Transcript available on Metacast 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!
Feb 02, 2024•2 min•Transcript available on Metacast 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 h...
Jan 30, 2024•30 min•Transcript available on Metacast 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 hav...
Jan 23, 2024•30 min•Transcript available on Metacast Sparklemuffin, turdus maximus, and sarcastic fringehead. These are the names of some of Marc’s favorite animals! Will Molly be able to guess what kind of animals they are?
Jan 19, 2024•2 min•Transcript available on Metacast Grab your raincoat, and join Molly and co-host Lily as they float into the clouds to learn about lightning! They’ll explore how lightning is made and what it takes to stay safe during thunderstorms. To close with a bang, Molly will slip on her Thunderpants and host an electrifying lightning-themed game show. But don’t bolt too soon. We’ve got a mystery sound reveal that promises to shock! Do you have your Smarty Pass yet?? Get yours today for just $4/month (or $36/year) and get bonus episodes ev...
Jan 16, 2024•33 min•Transcript available on Metacast The Brains On crew is hard at work on our next batch of episodes, and we'll be back in your feed on January 16, with an electrifying episode about lightning. Until then, check out our history show: Forever Ago. It's hosted by our friend Joy Dolo, and it looks into the fascinating past of things we take for granted. In this episode, Joy invites Molly on to the show to share the origin story of Superman that you've probably never heard. Take a listen! To hear the entire episode, search...
Dec 05, 2023•14 min•Transcript available on Metacast Join Molly Bloom and co-host Ishalo as they learn about the ingredients we need to grow – and why sometimes the growing seems slow! They’ll chat with Dr. Diva de León Crutchlow about sleep and hormones and help Sanden take care of Dwayne the 5-year-old brain. Is your excitement growing by the minute? Ours too! And we’ve got another tricky mystery sound, just for you. This episode was sponsored by: Indeed ( Indeed.com/BRAINS ) - Claim your $75 sponsored job credit to upgrade your job post. Terms ...
Nov 07, 2023•29 min•Transcript available on Metacast 
