Gene Kranz's waistcoat from the Apollo 13 mission.
The arming key from, and the last remaining piece of, Sputnik.
This is TV3, which was supposed to be America's first satellite, but the rocket exploded on the pad, hurling the satellite 300 yards. One of the technicians noticed a strange bleeping noise after the put the fire on the pad out, and found the rather battered satellite in a swamp.
The very first production F1 engine.
Apollo GNS, guidance and navigation system designed and built at the Charles Stark Draper lab at MIT and installed in the command module. The Mercury equivalent was the size of a small van.
This is the TV camera from Surveyor 3, which the astronauts rather forcefully removed during the Apollo 12 moon landing and returned to Earth.
Mockup of the equipment rack in the Hubble telescope, used in the neutral buoyancy tank in Houston to train the spacewalk crew...... .
Liquid oxygen injector plate from an F1 engine.