About THEMIS & the Mars Odyssey mission
The Thermal Emission Imaging System (THEMIS) is an instrument on board the Mars Odyssey spacecraft. It combines a 5-wavelength visual imaging system with a 9-wavelength infrared imaging system.
Mars Odyssey launched from Kennedy Space Center on April 7, 2001 and arrived at Mars on October 24, 2001. It spent the next several months achieving a circular mapping orbit by aerobraking (dipping into the atmosphere to slow and shrink the orbit). Aerobraking concluded in early February 2002, and primary mapping operations began a few weeks later.
The spacecraft is in a 2-hour orbit around Mars.
Infrared SpectroscopyHow THEMIS images can help scientists understand the geologic story of Mars.
THEMIS Pre-Launch Image GalleryImages of THEMIS and Odyssey during assembly, testing and launch.
THEMIS Fact SheetDetailed information about the Mars Odyssey mission and the THEMIS instrument.
Frequently Asked QuestionsThe who, what, where, why, when, and how of THEMIS.
THEMIS Science TeamThe people responsible for THEMIS and its data, and who are heading the research done with it.