Ten days in isolation can do things to a person, even if it's for a good reason like training for a mission to Mars.
The latest teaser for The Martian shows that isolation has driven some of the crew of the Ares 3 to greater levels of self-knowledge, while others have gone towards the big questions.
"Ares 3: The Right Stuff" introduces the crew of the mission that will, eventually, abandon astronaut Mark Watney, played by Matt Damon, on the surface of Mars after a storm apparently leads to his death.