Note: This page is an archive from COSine 2023 (January 20-22, 2023). Check the main COSine page to find details about the next COSine!

COSine 2023


January 20-22, 2023

Guest of Honor
Martha Wells

NY Times Bestselling Author, The Murderbot Diaries

Science Guests of Honor
Drs. Louise & James Gunderson
Experts in Robotics & Artificial Intelligence

Artist Guest of Honor
Kyle Crutcher
Retro-Futurist Potter

Robot Thinking Right

Special Guest
Connie Willis
Sci-Fi Grand Master

Special Guest
Courtney Willis
“Dr. Science”

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!

Embassy Suites by Hilton Colorado Springs
7290 Commerce Center Drive, Colorado Springs, CO 80919
719-599-9100 map
Ask for the special COSine convention rate when reserving your room!