COSine Science Fiction Convention

January 20-22, 2017

Colorado Springs, Colorado

COSine 2017 is pleased to announce that our Guest of Honor will be Jo Walton!

Jo Walton is an award-winning science fiction and fantasy author. She is originally from Wales, but currently resides in Canada. Jo has published three volumes of poetry in addition to her novels. She won both the Hugo and Nebula awards for her book Among Others in 2012. We are excited to have Jo as our guest in 2017.

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

  • Pre-registration is open. Attend the whole weekend for only $40! Sign up today here!

  • Thanks to all our guests, panelists, artists, dealers, and members for a great COSine 2016!

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 Jo Walton as our Guest of Honor for 2017.


COSine 2017 will likely return to our usual venue, but we'll keep you posted!

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.

Get in touch with us
COSine Science Fiction Convention
3640 Arborview Court
Colorado Springs, Colorado 80918-4726
Flickr photostream