Schnetzler is best known for analyzing moon rocks brought back by the Apollo program and for studying the Earth's environment using the Landsat and the Earth Observing System.
Earth | operating system | Earth-616 | Google Earth | Super Nintendo Entertainment System | Nintendo Entertainment System | Android (operating system) | Global Positioning System | Earth Day | Solar System | X Window System | Friends of the Earth | Korean Broadcasting System | From the Earth to the Moon | Cursed Earth | Earth, Wind & Fire | Middle-earth | System of a Down | Domain Name System | Seoul Broadcasting System | North Carolina Community College System | Mutual Broadcasting System | Bulletin board system | system | Turner Broadcasting System | Program and System Information Protocol | Geographic information system | From the Earth to the Moon (miniseries) | Ubuntu (operating system) | Tokyo Broadcasting System |