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.

  • There definitely is a magnetosphere near Mars.
    • this finding suggests that scientists must rethink theories about the evolution of Mars.
  • Surface features at Valles Marineris and elsewhere.
    • suggests the importance of geologic processes such as erosion by wind and water
  • Evidence of soil/atmosphere/water-cycle interactions 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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