COSI is open Thursday through Sunday, 10am – 5pm. Get your tickets now!

Science boxes with five days’ worth of themed STEM activities and science experiments for kids delivered right to your front door!

COSI Connects Kits - Science boxes with five days’ worth of themed STEM activities and science experiments for kids delivered right to your front door!

General Admission Discounts and Promotions

ASTC & ACM Reciprocal Admission

ASTC & ACM Reciprocal Admission

Participating members of the ASTC reciprocal network receive general admission to COSI*. Benefits do not apply to ASTC members whose place of residence is less than 90 miles from COSI. Per ASTC policy, the distance is measured “as the crow flies,” meaning that it is based on the linear radius, not driving distance. Science centers within 90 miles of one another are excluded from the program unless lifted by separate agreement. COSI will admit up to 2 adults and 4 children on an ASTC reciprocal membership.
*ASTC free reciprocal admission to COSI does not include the American Museum of Natural History Dinosaur and Special Exhibition Gallery, COSI Planetarium, COSI Giant Screen Theater or the COSI Motion Simulator. Tickets for these experiences may be purchased at COSI’s Box Office.

Participating members of the ACM reciprocal network receive 50% off exhibits admission. 50% ACM discount is valid for up to six people. Please call ahead to verify that you are eligible for the reciprocal admission benefit.

Military Discount

Military Discount

Active, Reserve, and Retired Military - $2.00 off per person in the immediate family with proper ID.

Senior Discount

Senior Discount

Seniors (ages 60 and up) receive a $2 discount on COSI general admission. Valid state-issued ID may be requested at the time of purchase.

Certified Teacher Discounts

Certified Teacher Discounts

Certified Teachers: Certified teachers are admitted to COSI free of charge with acceptable form of verification. Open to certified public/private PreK-12th grade school teachers, certified teachers at licensed/registered child care and preschool facilities, college/university faculty, and home educators. Acceptable forms of verification include: Faculty ID, OEA card, Teaching license/certificate, or letter from your school district indicating intent to home school.

Group Discounts

Group Discounts

Groups of 12 or more receive special discounts to visit COSI.


COSI Mobile App