NASA astronauts prepare underwater for 2025 moonwalk"

These divers are helping NASA astronauts train for the Artemis mission to the Moon

The divers and the pool are at the Neutral Buoyancy Laboratory (NBL) in Houston.

They turn off all lights, put up black curtains, and use a powerful underwater lamp.

Why are they doing this? It's to simulate conditions similar to that of the Moon.

NASA is planning to send people to the Moon with its Artemis mission in 2025.