Every year at COSine we hold a charity raffle, and for 2020 the charity we will be supporting is the Pikes Peak Observatory. The goal of the Pikes Peak Observatory initiative is to build a 1-meter research-quality observatory telescope on the summit of Pikes Peak, along with educational exhibits. The observatory was part of the … Read more

Here’s a shot of COSine 2020 flyers on the freebie table at Worldcon in Dublin! A lot of people have come from the US to Dublin2019, so it seems only fair that a few people make the pilgrimage to Colorado Springs :-). And here’s a gratuitous shot of a time-traveling DeLorean stationed in front of … Read more

New York Times Best-Selling Author Eric Flint has just agreed to be our Guest of Honor for COSine 2020 !! We are all very excited. Eric is probably best known for his 1632 alternate history novels (Officially The Ring of Fire Series, which now includes something like 26 novels), but he is also known for … Read more

For those of you who were at COSine 2019, you probably remember that we said that it was going to be the last COSine. But here’s the thing–we really had a great time at COSine 2019! So, as time passed, we started muttering. Then talking. Then scheming. Then, all of a sudden, we were well … Read more