27 Sep 2017 11:30AM - 1:00PMMake time for inspiration. Join us at our annual Catalyst luncheon as we celebrate the inspiration you make possible. This dynamic luncheon shows your investment at work through engaging activities and inspir...
|Family Friday Night|
29 Sep 2017 5:00PM - 9:00PMCOSI offers extended hours and price reduced admission to families so you can visit, learn, and play late! General admission is only $11 after 5pm and includes all of COSI's permanent exhibitions plus a movi...
|COSI After Dark - a 21+ Event - House of Horrors|
12 Oct 2017 5:30PM - 10:00PMIt's COSI without kids! Geek out with grown-ups and explore COSI, ride the High Wire Unicycle, enjoy special themed activities, catch a movie in the Giant Screen Theater, concessions and a cash bar. October's ...
|Model Railroad Days|
25 Oct 2017October 25-29, 2017All aboard! Check out amazing displays of model railroads from local train organizations. There will be trains of all sizes and shapes— something for every model railroad enthusiast. Free wit...
Summer Business Hours
Mar 15 - Sept 4*: 10am - 5pm
*Last Friday of every month (FFN): 10am - 9pm
Sept 5 - Sept 22: CLOSED FOR ANNUAL MAINTENANCE
Annual Closure Sept 6 - Sept 23, 2016 COSI is CLOSED for annual cleaning and maintenence. We will reopen Saturday Sept 24th at 10am.
Dr. Frederic Bertley hired as President and CEO of COSI Learn More
Meet COSI's Chief Scientist! Dr. Paul Sutter is an astrophysicist at The Ohio State University and COSI's Chief Scientist. In addition to sharing his passion for science to live audiences, Paul hosts podcasts and... Learn More