Mars Odyssey
Launch Date April 7, 2001
Launch Site Cape Canaveral, Florida, USA
Destination Mars
Type Orbiter
Status Successful—Extended Mission in Progress
Nation United States
Alternate Names 2001 Mars Odyssey, 2001-014A, Mars Surveyor 2001 Orbiter, Mars Odyssey 2001, 26734


Make global observations of Mars to improve our understanding of the planet's climate and geologic history, including the search for water and evidence of life-sustaining environments.

A 3D model of Mars Odyssey. Credit: NASA Visualization Technology Applications and Development (VTAD) › Download Options


Still in orbit around Mars, NASA's 2001 Mars Odyssey spacecraft has collected more than 130,000 images and continues to send information to Earth about Martian geology, climate, and mineralogy. Odyssey also served as a communication relay for landers such as the Mars Exploration Rovers Spirit and Opportunity.

Key Dates

Apr. ,7 2001: Launch

Oct. 24, 2001: Mars Orbit Insertion


Launch Vehicle: Delta II 7925

Spacecraft Mass: 729.7 kilograms (1,608.7 pounds) total, composed of 331.8-kilogram (731.5-pound) dry spacecraft, 353.4 kilograms (779.1 pounds) of propellant and 44.5 kilograms (98.1 pounds) of science instruments

Spacecraft Instruments:

  1. Thermal emission imaging system
  2. Gamma ray spectrometer including a neutron spectrometer and the high-energy neutron detector
  3. Martian radiation environment experiment

Additional Resources

NASA: Mars Odyssey

NASA Mars Program: Mars Odyssey

NASA Mars Exploration Program

National Space Science Data Center Master Catalog: Mars Odyssey

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