The Neutral Buoyancy Laboratory is an astronaut training facility that uses the principle of neutral buoyancy to simulate weightlessness in space.
First the astronaut is lowered into the pool using a crane. The suited astronauts are weighted by support divers so that the astronauts experience
the least rotational movement and buoyant force. The pool contains 6.2 million gallons of water!! It is located at the Johnson Space Center in
Houston, Texas.