An Air Force Reserve pararescueman descends into the Atlantic Ocean from a C-17 Globemaster III in an effort to recover a NASA astronaut as part of an exercise Jan. 14, 2016, off the shore of Cape Canaveral Air Force Station, Florida. The 45th Operations Group's Detachment 3 joined NASA's Commercial Crew Program; Air Force pararescuemen; combat rescue officers; and survival, evasion, resistance and escape specialists to practice recovering astronauts quickly and safely in the event they would need to abort their spacecraft. (U.S Air Force photo by Matthew Jurgens)