Inside the Australian icebreaker ship known as RSV Nuyina is a feature called a moon pool. A moon pool is what you might imagine would be a seafarer's nightmare, as it's basically a giant hole in the ...

Before walking on the moon, future astronauts may go for a swim. The famed Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center in Houston has trained hundreds of spacewalkers since 1992 ...