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

COSI is now closed

Next Theme: Throwback Thursday (Aug 10th)

Still living in the ‘80s or reminiscing about the ‘90s? Come to COSI After Dark for a decades-themed blast from the past – and revisit some classic COSI experiences while enjoying an adult beverage and concessions.


⨀ COSI’s Weather Show
⨀ Science of some of your favorite fads:
⨀ Lava Lamps
⨀ Plasma Globes
⨀ Mood Rings
⨀ Rubik’s Cubes
⨀ Slime-Making Station
⨀ “Big Wheel” races
⨀ Take apart a computer in the Gadget’s Cafe
⨀ Challenge your friends to a game of pogs or Oregon Trail: The Board Game


Coming soon


⨀ Level One Bar + Arcade
⨀ Byrd Polar
⨀ OBC Bat Night activities

Tech Studio:

COSI's digital media lab, Tech Studio, will feature interactive activities focused on 16-bit video games. Learn to create characters, design controllers, program gameplay, and compose 16-bit music...all included with After Dark admission!

COSI After Dark: a 21+ Event!
It's COSI without kids!

Geek out with grown-ups and explore COSI, ride the High Wire Unicycle, enjoy special themed activities, concessions and a cash bar.

No time to eat before coming? Add food to your COSI After Dark ticket. Offering a variety of small plates, guests who purchase this food ticket receive a wristband for all-you-can eat menu items.

5:30pm - 10:00pm

Cost: Member - $10
Nonmember - $14 in advance, $16 at the door

Buy Tickets

Upcoming Themes:

Thursday August 10th, 2017: Throwback Thursday
Thursday October 12th, 2017: House of Horrors
Thursday November 16th, 2017: Good Eats Food
Thursday December 14th, 2017: To Be Announced
Thursday January 11th, 2018: Wizard School
Thursday February 8th, 2018: COSI Olympics
Thursday March 8th, 2018: Game Night
Thursday April 5th, 2018: Wild Wild West Broad
Friday May 4th, 2018: May the Fourth Be With You
Thursday June 14th, 2018: Dangerous Science
Thursday July 12th, 2018: Christmas in July

National Geographic Giant Screen Theater


Tech Studio

COSI on Twitter

COSI Science Center

Planning note: Traffic/parking will be tricky this AM with the Jazz & Ribs Fest continuing today as well as The Color Run this morning.

by COSI Science Center