COSine 2025
January 24-26, 2025
Embassy Suites by Hilton Colorado Springs
Colorado Springs, CO, USA
Science Fiction Convention
COSine has been held in Colorado Springs since 2004, and features numerous sci-fi and fantasy authors, artists, and fans, as well as panels, art show, author signing & reception, gaming, science & technology, dealers room, kids' programming, liquid nitrogen ice-cream, and more!
Previous/Future Events
COSine 2025 — January 24-26, 2025
COSine 2024 — January 19-21, 2024
COSine 2023 — January 20-22, 2023
COSine 2022 — January 14-16, 2022
COSine 2020 — January 17-19, 2020
COSine 2019 — January 18-20, 2019
COSine 2018 — January 19-21, 2018
COSine 2017 — January 20-22, 2017
COSine 2016 — January 22-24, 2016
COSine 2015 — January 23-25, 2015
COSine 2024 — January 19-21, 2024
COSine 2023 — January 20-22, 2023
COSine 2022 — January 14-16, 2022
COSine 2020 — January 17-19, 2020
COSine 2019 — January 18-20, 2019
COSine 2018 — January 19-21, 2018
COSine 2017 — January 20-22, 2017
COSine 2016 — January 22-24, 2016
COSine 2015 — January 23-25, 2015