Apollo 11 lunar module pilot Buzz Aldrin carries science modules to their deployment area after landing on the moon on July 20, 1969. Good news: The laser ranging retroreflector Aldrin carries in his right hand is so accurate that NASA scientists could measure the distance between the earth and moon to within one millimeter. Bad news: we have learned that each year, the moon drifts 1.5 inches further away from the earth.
