Countersigned by Dave Scott Against the backdrop of the lunar module Falcon, Apollo 15 astronaut Dave Scott illustrates the hand of the Italian Renaissance on one of our century’s greatest achievements. The moon’s lack of atmosphere provided the ideal conditions to confirm what Galileo Galilei had concluded centuries before, as both hammer and feather, dropped simultaneously, contacted the moon’s surface at the same time. To the principle that in a vacuum objects fall at the same rate regardless of mass, Scott was able to report, “How about th. . .