COSine 2025 took place January 24-26, 2025 at the Embassy Suites by Hilton, Colorado Springs. Our guest of honor was Lawrence Watt-Evans (The Misenchanted Sword, etc.). Our science guest of honor was Dr. KaChun Yu from the Denver Museum of Nature & Science. Theresa Mather was our artist guest of honor and Connie Willis and Courtney Willis were once again our special guests.
You can see the details of the convention at the following archived pages: