M. About the Moon
   M 1. Introduction to Appendix M
   M 2. Historical Lunar Exploration
   M 3. The Lunar Environment
      M 3.1. Comparison of Earth and Moon
      M 3.2. Apollo Astronauts' Experience
      M 3.3. Lunar Terrain
      M 3.4. Moon Dust
      M 3.5. Temperatures on the Lunar Surface
      M 3.6. Heat Flow
      M 3.7. Seismic Activity
      M 3.8. Polar Environment
      M 3.9. Lunar Atmosphere
      M 3.10. Meteroid Bombardment
      M 3.11. Radiation Environment
      M 3.12. Orbital Mechanics
      M 3.13. Lunar Transient Phenomena
      M 3.14. Mapping the Moon
   M.4. Geologic Processes
   M 5. Lunar Minerals
   M 6. Moon Rocks
   M 7. Lunar Regolith
   M 8. Chemistry
   M 9. Physical Properties of the Lunar Surface
   M 10. Global and Regional Data About the Moon
   M.11. Observing the Moon