"We have enough money to put people back on the moon in that timeframe," he said. "The model that I have is that we should build a lunar outpost similar to the kinds of multinational outposts we have in Antarctica."In the next few months the space agency will make decisions regarding the craft that will be used for the voyage. Griffin hopes to present some firm conclusions by the end of this summer.
The last manned mission to the moon was Apollo 17 in 1972. More info at Reuters