This is an astronaut walking on the moon if the moon was underwater and at the bottom of a gigantic swimming pool

The Neutral Buoyancy Laboratory is a swimming pool at the Johnson Space Center in Houston , Texas .

The pool is 202 feet long, 102 feet wide, and 40 feet deep, holding a volume of 6.2 million gallons .

Inside the pool is also a mock up of the International Space Station where NASA simulates microgravity space walks.

This is something that NASA first started experimenting with back in the 1960s .

Artemis 3 mission will take astronauts to the moon for a week at a time doing moon walks pretty much every day .

They need to learn how to be mobile for long periods without getting exhausted and without causing excessive damage to their equipment by falling down too much.

NASA has been using a design of their XEMU or Exploration Extra Vehicular Mobility Unit .

The internal pressure of the suit is somewhere between 4:00 and 6:00 PSI .

So that's another variable that NASA will need to begin training their astronauts to deal with. And this is where it's all going to happen, on a fake moon at the bottom of a giant pool. Now you know..