The COSI Planetarium—the largest in Ohio—features state-of-the-art digital technology that offers an unsurpassed glimpse of our incredible universe. The COSI Planetarium’s Digistar 7 projection system and 60-foot dome will transport you to the farthest reaches of the galaxy, to undersea volcanoes and distant lands, and even into the human body. For all who wonder, who question, who dream, your window to the universe is now open at COSI.

The following daily show times for the current planetarium show are: 10:30, 11:15, 12:00, 12:45, 1:30, 2:15, 3:00, 3:45.
Please note that times are subject to change and may differ on holidays or times at which COSI is open for extended hours. Seating is first come, first served.

Download the COSI Science app for up to date showtimes and more!

Coming soon
DINOSAURS: A Story of Survival
Like almost all children, Celeste is fascinated with dinosaurs. She is preparing a talk for her class about how they went extinct when Moon, a very wise and magical character, poses a tantalizing question: what if I told you that there are still dinosaurs among us? Celeste will join Moon in a journey through time, and exciting adventure that will show them the Earth as it was in the very, very distant past. They will see the fascinating transformations that these animals underwent over millions of years, creating giant creatures, amored beasts and superpredators, until the day that a cataclysmic impact event caused a mass extintion on Earth. But all is not lost. Cesleste will discover the key to their survival.

*Closed Captioning for DINOSAURS: A Story of Survival will be shown during the 12:00pm and 3:00pm showtimes each day.

Assisted listening devices are available for all shows within the Planetarium at no extra cost. A photo ID is necessary to borrow the device. Please request the devices at the Guest Services desk. If you are planning a visit as a group you can make this request in advance.