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This image illustrates one way in which the magnetometer instrument studies the planet.
Click on image for full size
Image from: NASA/JPL

Initial Mars Global Surveyor Findings

These are some of the initial findings of Mars Global Surveyor.

  • The definite confirmation of the presence of a magnetic field near Mars.
  • Geologic features at Valles Marineris and elsewhere.
    • suggests the importance of geologic processes such as erosion by wind and water
  • Evidence of hydrologic processes somewhat like those of Earth.
  • The altitudes of such features as Olympus Mons, the bluff separating the southern and northern hemispheres, and other features.
  • More details about the Martian Atmosphere
These findings help address questions which remain about Mars.


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF