When astronauts venture into space, the walls of their spacecraft or the protective confines of their space suits are all that stand between them and the unforgiving nature of their cosmic surroundings.

NASA's space suits and spacecraft are designed to insulate and protect astronauts from a range of temperature extremes — from the bone-chilling minus 455 degrees Fahrenheit (minus 270 degrees Celsius) of deep space to the scorching hot 2,300 degrees Fahrenheit (1,260 degrees Celsius) of atmospheric re-entry.

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