Gemini astronauts learned that cooling their suit with air did not work very well.
Often, the astronauts were overheated and exhausted from space walks and their helmets would fog up on the inside from excessive moisture.
Prime crew for the Gemini 3 mission are photographed in full length portraits in their space suits. Viril I. Grissom (left) and John Young are seen with the portable suit air conditioners connected and their helmets on; Four Gemini astronauts are photographed in full pressure suits. From left to right are John Young and Virgil I. Grissom, the prime crew for Gemini 3; as well as Walter M. Schirra and Thomas P. Stafford, their backup crew.
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