The best simulator for spacewalking is underwater - it allows full visuals and body movement in 3D. Virtual reality is good, too, and has some advantages, like full Station simulation, not just part. Like all simulators, they have parts that are wrong and misleading: an important thing to remember when preparing for reality.

As an astronaut, especially during launch, half of the risk of a six-month flight is in the first nine minutes.

You can get claustrophobia and agoraphobia - a fear of wide, open spaces - simultaneously on a spacewalk.

Chris Hadfield Quotes