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 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

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

Reading Rainbow brought books to life for an entire generation of kids. Today’s PBS Throwback remix video lets you zoom into classic literature, with the help of Reading Rainbow’s host, LeVar Burton. How did Reading Rainbow affect your life? What books did it help you discover? #ILovePBS 🌈 | PBS Digital Studios

308K views · 1.3K reactions | Afrofuturism is defined as a genre at the intersection of black culture, technology, liberation, and the imagination. Join Dominique Taylor and PBS Digital Studios to explore the topic in the first episode of Read Awakening! Follow Great American Read • Watch Episodes • PBS for more #GreatReadPBS content all summer long. | PBS | Facebook

210K views | Uncover the origin of science fiction with Lindsay Ellis in a new episode of It’s Lit! from PBS Digital Studios! #GreatReadPBS | Milwaukee PBS | 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