Located in St. Louis, Missouri.
Highlights include Mission: Mars (a fantastic 2 part Mars exhibit), a planetarium, Gemini and Mercury capsules used for testing, a Makerspace, and some of the finest traveling exhibits in the country.
Saint Louis Science Center was one of the stops for Destination Moon, the Apollo 11 50th anniversary exhibit from the National Air and Space Museum. Destination Moon will be at the Museum of Flight in Seattle until September 2, 2019. It will then be on display at the Cincinnati Museum Center from September 28, 2019 to February 17, 2020.