Astronaut John H. Glenn, Flight Surgeon Dr. William Douglas and equipment specialist Joe Schmitt leave crew quarters prior to the Mercury-Atlas 6 (MA-6) mission. Glenn carries a portable ventilation unit.Image credit: NASA
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Astronaut John H. Glenn, Flight Surgeon Dr. William Douglas and equipment specialist Joe Schmitt leave crew quarters prior to the Mercury-Atlas 6 (MA-6) mission. Glenn carries a portable ventilation unit.Image credit: NASA