Cold Station 12, also known as C-12, was a top-secret facility located in an asteroid in the 22nd century. It was jointly operated and staffed by Humans and the Denobulans under the auspices of the Interspecies Medical Exchange. The facility was used to store hazardous viruses and pathogens for research purposes, as well as over 1,800 embryos of 20th century Augments, left over from the Eugenics Wars.