If NASA withdraws from ISS, then what about training for a long duration flight to Mars?
An astronaut should spend 3 years aboard ISS, the time it would take to go to Mars and back. 3 years from now...the shuttle will stop flying.
Space/Science » in reply to If NASA withdraws from ISS before Orion becomes operational...
An astronaut should spend 3 years aboard ISS, the time it would take to go to Mars and back. 3 years from now...the shuttle will stop flying.