In space your body had better be under your command. This means that when it comes to upper body strength you really ought to be able to feel that you have the ability to do pretty much what you want with it. Space Cowboy is an upper body strength workout that works all the major upper body muscle groups in a way that aligns their movements and helps increase the overall level of power your strength can generate. Add EC for that extra challenge and you are done!
Extra Credit: 1 minute rest between sets.