Dr. Benjamin Johansen, stands with his right hand raised as he is administered the commissioning oath by Army Lt. Col. Anne McClain, an astronaut on the International Space Station, 210 miles above earth. Johansen is joining the Air Force Reserve as a flight surgeon and will wear the rank of a captain, but as a civilian he is a flight surgeon with NASA and is assigned as one of two flight surgeons for McClain. (Air Force photo/Master Sgt. Chance Babin)