Moon by 2015
That is if everything goes well.
For a while television and bad movies developed the stock character of the retired astronaut who mused about walking on the moon. (This even cropped up in Spiderman II with a character who wasn't supposed to be older than 30--meaning he wouldn't have been born in 1972, the last time man has been there.) Ex-astronauts weren't the egg-head stereotype like typical Hollywood scientists so could be brain-dead and represent godless secular science at the same time.
Other than Spiderman, this character doesn't show up as often anymore. I guess that's the bright side to stagnation.