The first human to walk in space had to depressurize his suit to fit back inside
During the first-ever spacewalk in 1965, cosmonaut Alexei Leonov faced a life-threatening crisis when his pressurized suit ballooned so much that he could not fit back into his spacecraft.
Floating outside the Voskhod 2 for 12 minutes, Alexei Leonov realized his suit had expanded in the vacuum of space, rendering his joints stiff and his body too wide for the airlock. With his heart rate soaring to 150 bpm, he made the harrowing decision to manually bleed off oxygen to depressurize the suit.
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