I haven't done spacecraft in a while, so here goes. This is one of the more obscure concept spacecraft NASA came up with, which has since been more or less forgotten. Basically, it's a space tug which was designed to transfer cargoes between spacecraft. http://www.astronautix.com/craft/spacetug.htm As it's a concept design which never went beyond conceptual slides and plates, I've added my own minor modifications in an attempt to make it look more modern. I based the propulsion block on the Aries spacecraft from 2001, and I've decked out the ship in livery of a company I made up, called Luna Industries. I've named the ship the "Pegasus" after a 1907 tugboat, whose crew are good friends with the crew of the ship I work on. (If you're ever in New York, I recommend visitng her if she's pulled up alongside us). Have some pictures!