Ever heard of “hitting the wall” during a marathon? This is what happens when your body runs out of stored energy, and your brain goes into protection mode. Here’s exactly how it happens! 🧠 We’re revisiting this @okaytobesmart where @drjoehanson runs a marathon! Have you ever “hit the wall”? Share with us in the comments! | PBS Digital Studios

PBS Digital Studios turns 10 years old this year! 🥲🥳 We couldn’t have lasted this long without the support of all our amazing fans. To celebrate, we asked our creators and staff to reflect on the past decade with us. Here’s what they had to say... #PBSDS10 | PBS Digital Studios

96K views · 27 reactions | On April 10, 2019, astrophysicists from the Event Horizon Telescope collaboration electrified the world with the first ever image of a black hole. How did that happen? Joe Hanson from It's Okay to be Smart • PBS shows us how it took telescopes working together all over the world to make it happen. | PBS Digital Studios | Facebook

105K views · 210 reactions | Welcome to Eons! This show from PBS Digital Studios takes you on a journey through the history of life on Earth. | Eons • PBS | Facebook

PBS Digital Studios wants to hear from YOU. We do a survey every year that asks about what you’re into, your favorite PBS shows and what you’d like to see from PBS Digital Studios. You even get to vote on potential new shows! All of this helps us make more of the stuff YOU want to see. The survey takes about ten minutes, and you might win a sweet T-shirt. Thanks! FIND IT HERE: https://www.pbsresearch.org/c/r/PBSDS_FB_Insta | PBS Digital Studios | Facebook

18K views · 32 reactions | So Rudolph may not be the only reindeer with a red nose! From It's Okay To Be Smart. | PBS Digital Studios | Facebook

20K views · 514 reactions | You are invited behind-the-scenes of the ball! #Cinderella is on Blu-ray & Digital HD now. | Walt Disney Studios | Facebook

17K views · 43 reactions | Hip Hop don't stop!  Celebrate the 50th year of Hip Hop with a break down from some of the most iconic figures in the genre. Fight the Power: How Hip Hop Changed the World premieres Tue, Jan 31 at 9/8c. #FightThePowerPBS | PBS Digital Studios | Facebook