NASA astronaut Nicholas Patrick during EVA-3 .. | Free public domain photo - 440832

astronaut astronomy cc0 construction creative commons creative commons 0 cupola earth eva eva-3 expedition 22 exploration extravehicular activity final session helmet visor insulation blankets international space station launch launch restraint bolts maintenance mission specialist nasa nicholas patrick orbit outer space person public domain removing robert behnken science seven windows shuttle space space shuttle space station spaceship spacesuit spacewalk station sts-130 mission technology working