The Space Store » Astronaut

NASA has been training its astronauts in an underwater tank, and you may be surprised to learn that it’s the best way to prepare them for the conditions of space. 

Becoming a space sailor for NASA is very difficult. There are plenty of applicants, but only a small percentage go all the way to becoming a NASA astronaut.

Everyone knows there is no oxygen in space. So how do the astronauts aboard the International Space Station (ISS) get their oxygen? The answer to this question is a little more complicated than one would expect.