Spaced Out: Astronaut Quiz
Astronauts have a reputation for being the brave and skilled few willing to risk their lives by strapping themselves aboard a rocket and blasting into outer space. But before they can don the orange jumpsuits and go into orbit, they must endure an intense selection and training process. How did guys like Neil Armstrong and John Glenn make it into space? And how have NASA requirements for astronauts changed in the last 50 years?