COSine Science Fiction Convention

January 19-21, 2018

Colorado Springs, Colorado

COSine 2018 is pleased to annouce our Guest of Honor
Jody Lynn Nye

Our Science Guest, Biomechanical Engineer
Dr. Dana Carpenter

Joining us again this year are Special Guests
Connie and Courtney Willis.

Fan Guests of Honor
Nina and Ron Else

For the latest happenings, check here or our Facebook page.

  • Our programming schedule is now online! Click here for the full listings.

  • Pre-registration is CLOSED. You can still buy full weekend or day passes at the Con. Click here for the rates.

Want to attend?

COSine has a membership fee that includes all activities and games, Dealer's Room, Author's Reception & Signing, and our renowned Con Suite with food and drinks you can enjoy all weekend.


COSine is proud to feature Jody Lynn Nye as our Guest of Honor for 2018. We are pleased to again welcome Connie and Courtney Willis as our Special Guests.


COSine 2018 will be returning to the same hotel we have used in the past, the Hotel Eleganté Conference & Event Center, located at the south end of Colorado Springs, just off I-25. The hotel has great function space for our convention, and the best view ever from the dealer's room!

Call for Volunteers!

Want to help out? We would love to have you! If you would like to lend a hand, contact the committee member in charge of any area you are interested in, or you can volunteer at the convention itself. You can come to meetings of First Friday Fandom to see how we organize the convention and share your opinions.