You thought we had done all possible environmental medicine subjects, didn't you?  Altitude medicine, check.  Arctic medicine, check.  Deep water medicine, check.  But I bet you didn't think of Space Medicine!  We promise it's a thing.  Just not one we know much about.  But we do have fun discussing Total Recall and Apollo 13, and we think you'll have fun coming along for the ride and listening to our vacuum of knowledge on the subject!