The new 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 new Digistar 5 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.

Subtitling is offered in COSI’s Planetarium for One World, One Sky and Wildest Weather in the Solar System. Hearing assist devices are available for all shows within the Planetarium. No special reservations or advance notice is required, simply notify the Planetarium usher that you would like the subtitled version of show as you hand them your ticket. If you are planning a visit as a group you can make this request in advance.

Now Available: Planetarium Only tickets!

Planetary Treasure Hunt

Planetary Treasure Hunt

Search the solar system for hidden treasure with COSI’s Planetary Treasure Hunt. Climb on board the magical Starship C.O.S.I. 43215 for a visit to Mars, Saturn, the Moon and more. You might even experience an alien encounter or two, so keep your eyes peeled – the aliens’ riddles just might help you find the Northern Crown’s missing jewels.
Especially for children 5-10 | Running time: Approximately 25 minutes.

Showtimes:
Sept 21 - Dec 10: 11:15am | 2:15pm

Starry Nights Live

Starry Night Live

This live show explores what can be seen in the sky tonight in central Ohio. Discover the current stars, constellations, planets, and deep sky objects that fill the starry night.
Best for ages 7+ | Running time: Approximately 22 minutes.

Showtimes:
Sept 21 - Dec 23: 12:15pm | 3:15pm


Life: A Cosmic Story

Life: A Cosmic Story

Life: A Cosmic Story tells the 14-billion-year saga of how we came to be. It's a journey from the microscopic view inside a plant cell to the vastness of our universe populated by billions of galaxies swirling in space. How did life on Earth begin? This tantalizing question forms the basis of this magnificent production. Recommended for ages 7+. Running time: Approximately 28 minutes.

Showtimes:
Sept 21 - Nov 12: 1:15pm | 4:15pm


Teacher's Choice Show

Teacher's Choice Show

See the shows of your choice during your field trip or group visit, including Cell! Cell! Cell!, Black Holes: The Other Side of Infinity, Our Solar System, Back to the Moon for Good, Wildest Weather in the Solar System, One World One Sky: Big Bird's Adventure, and Our Universe Above. Learn More

Showtimes:
Daily: 9:00am | 9:15am | 9:30am | 9:45am

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Rent It

Host your wedding, party, or private event under swirling galaxies and spectacular starscapes, no matter what the weather outside. The COSI Planetarium is available for weddings, birthday parties, corporate events, and family reunions, and offers customized starshows and seating for over 200 guests. For private rentals, please contact the This email address is being protected from spambots. You need JavaScript enabled to view it.. For birthday parties, please contact the This email address is being protected from spambots. You need JavaScript enabled to view it..