Today's Hours: 
10am - 5pm
Today's Hours: 
CLOSED
Today's Hours: 
CLOSED
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm
Today's Hours: 
10am - 5pm

COSI is now open!

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.

Closed captioning is available in COSI’s Planetarium for shows whose producers have provided it. Please contact a Planetarium usher for assistance with these devices and services. Please contact COSI to learn which current shows contain this resource.

Now Available: Planetarium Only tickets!

One World, One Sky

One World, One Sky: Big Bird's Adventure

Explore the night sky with your favorite friends from Sesame Street! Follow along with Big Bird, Elmo and their friend from China, Hu Hu Zhu, as they take you on a journey of discovery to learn about the Big Dipper, the North Star, the Sun and the Moon. Running time: Approximately 40 minutes.

Showtimes:
Sept 23 - Dec 17 (Wed-Fri only): 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. Running time: Approximately 22 minutes.

Showtimes:
Sept 23 - Dec 17: 1:15pm | 4:15pm
Dec 20 - Jan 6: 1:15pm | 4:15pm | 6:15pm
Aug 25, Sept 29, Oct 27, Nov 24, Dec 29 (FFN): 7:15pm


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. Running time: Approximately 25 minutes.

Showtimes:
Sept 23 - Jan 6: 12:15pm | 3:15pm
Aug 25, Sept 29, Oct 27, Nov 24, Dec 29 (FFN): 6:15pm

Magic Treehouse

Magic Tree House: Space Mission

Travel with the brother-sister duo, Jack and Annie, in their Magic Tree House as they discover a note that asks them to answer a series of six questions about space. With the help of an astronomer, the Internet, an astronaut, books, and the writer of a mysterious note, Jack and Annie are taken on a wondrous journey of adventure and learning. This exciting voyage will carry visitors to the planets and far out into the Universe where Jack and Annie nearly get… Well, we don’t want to give it away. The adventure is just beginning! Running time: Approximately 35 minutes.

Showtimes:
Sept 23 - Dec 17 (Sat-Sun only): 11:15am | 2:15pm
Dec 20 - Jan 6: 11:15am | 2:15pm

 

Sky in Your Hands

Sky in Your Hands

Treat your sense of sight, sound, and even touch to an incredible journey through the constellations. Experience the cosmos both projected above you on the planetarium dome and at your fingertips on a personally sized three-dimensional model. This is a planetarium show unlike any you’ve ever felt before. Running time: Approximately 25 minutes.

Showtimes:
Sept 23 - Jan 6 (Sat & Sun only): 10:30am

Deep Space

Deep Space Q&A
with COSI Chief Scientist and Astrophysicist: Dr. Paul Sutter

This live show lets you ask COSI’s Chief Scientist, Dr. Paul Sutter, your favorite questions about science and the universe in a dynamic Q&A format. You direct the show as the 60-foot dome in COSI’s Planetarium showcases visuals that help answer your deep questions. Show length: approximately 30 minutes.

Showtimes:
Oct 12, Nov 16, Dec 14 - 8:30pm (CAD)

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..