THEMIS for scientists and researchers

The Thermal Emission Imaging System (THEMIS) is an instrument on board NASA's Mars Odyssey orbiter. It combines a 5-band visual imaging system with a 10-band infrared imaging system.

THEMIS began scientific mapping February 18, 2002. Below are links to all released data, instrument descriptions, useful software, and THEMIS-based publications in refereed journals.

Webmap of All THEMIS Images (2002-Present)

Image footprints for all released images taken by the Thermal Emission Imaging System (THEMIS) on the Mars Odyssey orbiter.

THEMIS Fact Sheet

Detailed information about the Mars Odyssey mission and the THEMIS instrument.

Mars Global Movies

Wrapping spacecraft data around a Mars globe presents new ways of seeing the Red Planet.

Mars Global Datasets

Go here to access scientific datasets that cover all of Mars.


A geographical information system that provides easy access to many different Mars data sets.

THEMIS Support for MSL

Data from THEMIS helped scientists choose a landing site for the Mars Science Laboratory (MSL), NASA's next rover spacecraft, due to arrive August 2012.

Maps of all Mars images

Find images taken by Mars-orbiting spacecraft from Viking (1976) to the present day.

THEMIS keeps an eye on Mars for dust

Scientists are using THEMIS to detect seasonal and yearly changes in dust activity and to track the development of dust storms.

THEMIS publications

A list of THEMIS publications in refereed journals.


A programming tool to manipulate and view multispectral data.

Spectral Library

A library containing thermal emission spectra of a variety of geologic materials.

Software & Tools

Available research software used by THEMIS scientists and researchers.