Tomorrow is Deaf Day at the Science Center! 🎉 Experience #STEM your way with ASL-interpreted shows, demos, and special presentations. All free and open to everyone. 📅 Sept 20 | 10 AM–2 PM Learn more: slsc.org/event/deaf-day…

Happy first day of fall! 🍂 Today’s #AutumnEquinox brings nearly equal day and night as Earth’s axis tilts side-on to the Sun. Celebrate the science of the seasons with us at the Planetarium!

The Saint Louis Science Center's "Two Scientists Walk into a Bar" is happening right now at both of our brewpubs followed by... 👇 Gilmore Girls Trivia Night starting at 7 pm Schlafly Beer Bottleworks and a full lineup of rock bands starting at 7 pm Schlafly Beer Tap Room!

Starting today, you may notice some exterior cleaning around the Science Center! Over the next 2 months, our building & pedestrian bridge will be getting a fresh wash. During this time, certain areas may be rerouted for your safety. Thank you for your patience!

Sad to hear of Jane Goodall’s passing at 91. Was extremely lucky to spend a couple hours with her at Saint Louis Science Center in 2022. stltoday.com/news/multimedi…

We remember and honor the remarkable life of Dr. Jane Goodall. Her visit to the Saint Louis Science Center during Becoming Jane was a moment we’ll never forget. Her legacy of compassion, curiosity, and conservation will continue to inspire generations. Thank you, Dr. Goodall.

We're excited that tonight's forecast will offer the perfect opportunity to "Look Up" and join our FREE Telescope Viewing (Oct 3, 2025 at 6:30 pm) outside the James S. McDonnell Planetarium to see Saturn, Mars and other heavenly objects up close. slsc.org/event/planetar…

GOURD vibes only. 🎃 Fall harvest is here! Come explore our acre of agriculture in GROW and discover the science behind how pumpkins (and more) grow. 🌱

Join us Oct 25 for Up Late: Spooky Science (21+). 🍺 Schlafly brews + bourbon 🎶 Funky Butt Brass Band + comedy 🌌 Ghost stories in the Planetarium 🧪 Science demos + life-size Operation game 😱 Face your fears (VR heights, bugs + more) 🎟 $20/$15 members slsc.org/event/up-late-…

Tonight, we’re cheering on the St. Louis Blues by lighting the Planetarium in blue and yellow for Opening Night! 💙💛 #LGB

Congratulations to Science Center Board of Trustees member and SLU CHROME Lab Director Jenna Gorlewicz for being named to the St. Louis Business Journal 40 Under 40 Class of 2025. bizjournals.com/stlouis/news/2…

Through our partnerships with Project Lead The Way, Saint Louis Science Center’s Youth Exploring Science YES Program and the Battle of the Brains competition at Science City at Union Station KC we’re helping students see how STEM can change the world. hubs.li/Q03NhGP30 #BenchMark #STEM

A comet that hasn’t visited Earth in over 1,000 years is making its return! ☄️ Comet C/2025 A6 (Lemmon), discovered just this year, is now visible in the northwestern sky around 7 PM over the next few evenings. Learn more: slsc.org/night-sky-upda… Images created using Stellarium.

🧪 Happy Mole Day! From 6:02 a.m. to 6:02 p.m. today, we’re celebrating 6.02 × 10²³ reasons to love chemistry and support curious students mixing up experiments, chasing reactions and making STEM cool! 💥 #BurnsMacSTEM #MoleDay #STEMeducation #ScienceIsCool

Need weekend plans? Don’t miss Up Late: Spooky Science, THIS Sat. Oct. 25! 👻 Explore the science behind fear, sip seasonal drinks, hear ghost stories under the stars, enjoy live music, & more! 🎟️ Grab tickets before they disappear! slsc.org/event/up-late-…

Get tickets now for Up Late: Spooky Science on 10/25 and get 20% off your total order at Hi Pointe STL on 10/26! Learn more: slsc.org/event/up-late-…

What a night! 👻⚗️ Thank you to everyone who joined us for Up Late: Spooky Science this weekend. From mysterious experiments to hauntingly good fun, you made it a night to remember! Mark your calendars for the next Up Late: Attraction on Saturday, January 24. 🧲❤️‍🔥 More info soon!

Happy 60th to our city’s most iconic structure, the Gateway Arch! 🎉 Our team marked the occasion the best way we know how, by building our own mini Arch in the Structures Gallery. Here’s to 60 years of inspiring awe, innovation, and that unmistakable #STL pride.