I chose the one where the person smashes her helmet.

The space technician was trying to get a sample of a rock and she pulled too hard and the rock smashes her helmet.  One could hear the “tong!” as pieces of glass go flying everywhere.  You could hear the sudden whoosh of air exit the face mask.  The technicians head puffs up like a balloon and presses against the inside of the helmet.   The death was quick but painful.