Mapping the Surface of a Planet - Activity 3
The third major instrument aboard the Mars Global Surveyor spacecraft is the Mars Orbiter Laser Altimeter (MOLA). This instrument, controlled from NASA's Goddard Space Flight Center in Greenbelt, Maryland, transmits infrared laser pulses towards Mars. These pulses bounce off the Martian surface and the instrument measures the time it takes to receive the return pulse. The image used shows the topography or heights, of the region surrounding the three Tharsis Montes volcanos. Two other URLs associated with this activity are: Student guide - http://marsed.asu.edu/pages/pdfs/MappingStudentGuidev200.pdf Image for Activity 3 - http://marsed.asu.edu/pages/pdfs/ActivityThreeImage.pdf

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