CSA astronaut Joshua ready for training while wearing a spacesuit

Canadian Space Agency astronaut Joshua Kutryk about to train for his upcoming mission to the International Space Station (ISS) at NASA's Neutral Buoyancy Laboratory (NBL) in Houston, Texas. 

The NBL is one of the largest indoor pools in the world. Astronauts use the facility to simulate spacewalks.  (Credit: NASA/Josh Valcarcel)