March 18, 1965 –
Cosmonaut Aleksei Leonov performed the first spacewalk on this day. He stayed outside his ship for 12 minutes, held to the ship by a tether.
By the time his walk was over, his spacesuit had inflated so much in the vacuum of space that he could barely get back inside the ship. With a bit of quick thinking, he opened a value to allow some of the suit’s air to bleed off without venting all of it, only barely getting back into the capsule in time.
And so it goes
The Haus of Dcaligari 