We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes.

Be Smart is hosted by Joe Hanson, PhD. He's a molecular biologist and an award-winning science communicator and journalist

Have ideas or questions? Visit our website to get in touch: www.itsokaytobesmart.com/




Be Smart

Be Smart fans! Want to help us decide what episodes to bring to the channel? We’re putting the choice in your hands! to.pbs.org/2025SurveyBeSmart Each year, Digital Studios conducts a survey to better understand our viewers. Pick new shows, let us know what you love, what you'd rather watch, and much more. It only takes a few minutes, and yes, we actually do listen! We’re excited to hear from you.

2 weeks ago | [YT] | 850

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Hey Smart People! 👋 I recently sat down with my buddy Ruff Ruffman over on ⁨‪@GBH‬ to talk about navigating digital skepticism, and how you can find news you can actually trust: youtube.com/watch?v=6Imm-NVtZyY How do you stay smart online? 🤔 Head on over for some tips you can use (and share with friends!)

1 month ago (edited) | [YT] | 621

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What really causes autism? 🤔
There are myths. There are headlines. And then there’s the science. I spent months digging into the research to separate fact from fiction. It's the deepest investigation we've ever done, and the full story is live now! 👉 https://youtu.be/E-yaxqDsfgY

3 months ago | [YT] | 752

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Hey, Smart People! Joe here with a RANDOM fact from our newest video: https://www.youtube.com/watch?v=xLeiJ...
One of the most important defenses protecting your bank account, emails, and identity is... a lava lamp. Groovy, right?
We traveled to some fascinating places to explore how true randomness keeps the web safe — and why hackers might freak out over these hypnotic blobs. Watch now to see how science, encryption, and lava lamps team up to protect YOU. Far out.

4 months ago | [YT] | 986

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Hey smart people! Radioactive dinosaur skeletons might sound like the start of sci-fi B-movie, but they’re real! In the 1950s, in the US government’s rush to build nuclear weapons, Utah became the world’s uranium mining capital. But these radioactive deposits led prospectors to something unexpected: ☢️ DINOSAUR REMAINS ☢️
Head over to our friends at BBC Earth Science to find out more (and tell them Joe sent you!)

5 months ago | [YT] | 410

Be Smart

Next week, the Senate will vote on whether to eliminate previously-approved funding for public media, which would have a devastating impact on essential educational, local, and cultural programming that public media provides. However, changes are still possible and your support can make a difference. Visit protectmypublicmedia.org to urge them to remove the proposal targeting public media from the package.

5 months ago | [YT] | 4,911

Be Smart

Hey Smart People! Spinosaurus was a truly weird dinosaur. One of the largest predators in its era, it was thought to have lived exclusively on land. But were we wrong about Spinosaurus? There is now convincing fossil evidence that it spent a huge amount of time in the water, which would make it the FIRST ever aquatic dinosaur. To find out more, head over to our friends at ‪@pbsterra‬ to watch the latest episode of Walking with Dinosaurs Unearthed (and tell them Be Smart sent you!)
🦖➡️ https://youtu.be/6myQDQS0tNk

5 months ago | [YT] | 1,981

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Hey Smart People! You might know that birds are *literally* dinosaurs… but how do we ACTUALLY know that? In my new video we recreate an insanely cool experiment (using chickens) that explains how some feathered dinosaurs took to the skies and evolved into birds. It's a mystery that stumped Charles Darwin… can we solve it? 👀➡️ https://youtu.be/yLB839Sir5c

6 months ago | [YT] | 3,101

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Big news dino lovers – Walking with Dinosaurs is BACK! 25 years after the iconic original series, PBS just launched a brand new Walking with Dinosaurs series that reveals how these colossal creatures lived, hunted, and survived through state-of-the-art visual effects based on the latest research. Follow me over to the PBS App or PBS.org to watch this amazing show now!
to.pbs.org/WalkingWithDinosaurs

6 months ago | [YT] | 1,228

Be Smart

Important video message from us 👉 https://youtu.be/aL5gTz4eMLw
Hey Smart People, it’s important that you know that right now, PBS and public media are at risk. Congress will soon be voting on a proposed bill that would take away already-approved funding and have a devastating impact on PBS and member stations. If you’d like to support our mission, visit protectmypublicmedia.org/ to voice your support. Thanks 🙏

6 months ago | [YT] | 533