You'll Never Get Lost on the Moon Again

If the featureless wasteland of the lunar surface made your last trip there a navigation nightmare, don't feel bad. You're not the only one. With no landmarks to give them perspective or to help estimate distance, astronauts in years past had a hard time finding their way around too. But when NASA establishes a… » 7/24/08 8:00am 7/24/08 8:00am