• Sherlock
  • 50th Anniversary
  • Membership
  • Rocky Mountain Express
  • Adventure
  • Tornado Alley
  • Planetarium
  • COSI After Dark
  • Tornado Alley 3D
  • Summer Camps

Featured Offerings

Family Friday Night

Family Friday Night

April 25, 5-9pm: Extended hours and price-reduced admission! General admission is only $9.95 after 5pm and includes all of COSI's permanent exhibitions plus a movie in the Extreme Screen theater!

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Rube Goldberg

Earth Day Featuring Backyard Science

April 26: Celebrate spring and the earth with COSI! Discover science in your own backyard, explore the impact of your energy choices and learn about ways to make a positive impact on the local environment.

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From the calendar