 | Location of Microbial Ecology Evaluation Device in Apollo Command Module |
 | View of replica of the plaque left on Moon by Apollo 16 crew |
 | Astronaut John Young drives in One-G Lunar Roving Vehicle during simulation |
 | Astronauts Young and Duke in geology training and EVA simulation |
 | Astronauts Charles Duke surveys terrain at California training site |
 | Apollo 16 prime and backup crewmen during geological field trip in New Mexi |
 | Astronauts Young and Duke study rock formations on simulated lunar traverse |
 | Astronauts Young and Duke collect rock samples along simulated lunar traver |
 | Astronauts Young and Duke participate in training with Lunar Roving Vehicle |
 | Prime and backup Apollo 16 crew during preflight briefing |
