Saint Louis Science Center

Big things are coming to the McDonnell Planetarium! 💫 Get a behind-the-scenes look at our Orthwein StarBay upgrade, including the first-in-the-U.S. GOTO Chiron III star projector and an immersive new full-dome system, in our KMOX News interview with Planetarium Manager Will Snyder. 🎙️ Listen to the full segment on our blog for a preview of what’s ahead and why it’s a game changer for St. Louis: https://www.slsc.org/kmox-planetarium-upgrade/ The Planetarium reopens July 18, don’t miss it!

Celebrate a decade of growth, and the tiny helpers who make it all possible! 🌱🐝 For 10 years, our GROW gallery has brought the journey from seed to table to life, from buzzing bees and root systems to cutting-edge farm tech. This , discover how bumblebees’ powerful buzz keeps foods like tomatoes and blueberries on your plate, and how you can support pollinators. 🌻🚜 Dig in, explore, and celebrate with us! Plus, we’re now open Wednesdays (closed Tuesdays), so it’s even easier to visit.

Learn more: https://www.slsc.org/attraction/grow/

The longest day of the year 🤝 the longest-running tradition: dad jokes. This lands on the , aka peak daylight powered by Earth’s tilt. ☀️ More sun = more time at the Science Center to celebrate the dads/father figures who spark curiosity…and really commit to the bit.

👉 Tag or send this to someone who won’t be able to resist these jokes (you know exactly who).

Ever wondered what it takes to grow your food, from seed to table? 🌱 For 10 years, GROW has brought that journey to life through hands-on science, agriculture, and innovation. 🌻🚜 Fox2Now stopped by to celebrate with us, featuring our Associate Director of Gallery & Exhibit Content, Maddie Earnest, and highlighting how GROW continues to evolve and inspire.

Join us to celebrate a decade of discovery, see how far we’ve grown, and dig into the experience for yourself. We’re now open Wednesdays too, more chances to visit! 🌿✨

Learn more: https://www.slsc.org/attraction/grow/
▶️ https://youtu.be/pVVNH8u-a0I?si=8vrlkr5ZDXV4DK6C

Celebrating GROW’s 10th Anniversary Get a little dirty while learning at Science Center's GROW Gallery!...

In honor of Juneteenth, the James S. McDonnell Planetarium glows red, black, and green—celebrating freedom, uplifting resilience, and standing with our community in the pursuit of equity.

What’s happening in the daytime sky this June? ☀️ Check out our latest to explore the science behind a possible El Niño, catch key moments like the June 21 , and learn what else to look for. 🔭 Join us for FREE Solar Sunday Telescope Viewings every Sunday (11 am-3 pm, weather permitting). Next ones are June 21 & June 28!

The Planetarium will be reopening later this summer, more updates coming soon. & reminder: we’re now open Wednesdays (closed Tuesdays only)! 👉 Read more on our blog:

Day Sky Update June 2026 – Saint Louis Science Center Day Sky Update June 2026 This is the Saint Louis Science Center's DAY SKY UPDATE for the Month of June 2026. Information updated monthly or...