The next mission to land a man on the moon will take place in 2015 at the earliest, the new chief of the United States' space program said on Monday, adding the mission could be followed by the construction of a multinational space station there. But NASA has not yet decided what vehicles will be used to reach the moon, or what will succeed the aging space shuttle fleet, which is due to be retired in 2010. "I don't have a specific date, but sometime between 2015, which is the earliest we think we can do it, and 2020, which would be the latest," said Michael Griffin, the new administrator of NASA, when asked at the Paris Air Show about NASA plans to return to the moon. The last manned mission to the moon was NASA's Apollo 17 in 1972.
