MARS - some global information


     MARS       PHOBOS        DEIMOS
 
       6794km            22.2km              12.6km              diameter
  6.4219e23kg         1.08e16kg            1.8e15kg              mass
227.940.000km                                                    distance from SUN
                         9378km             23459km              distance from MARS

GLOBAL INFORMATION ABOUT MARS AND HER MOONS PHOBOS AND DEIMOS
  1. Mars has two moons, PHOBOS and DEIMOS
  2. The surface of Mars
  3. The temperature of Mars and the seasons with snow and ice
  4. Clouds air and wind
  5. Spacecraft visits in 1965 1976, maybe in 1996 and 1998
  6. Human habitation on Mars
    1. temperature variation from 150k (-220F) to 295K (70F)
    2. in the past there was clearly water on the surface of mars, there may even have been oceans
    3. the average pressure on the surface of mars is only about 7 millibar (less than 1% of earth's)
    4. mars has permanent ice caps at both poles
    5. mars has no global magnetic fields
    6. mars has a very thin atmosphere
    7. the favorite planet of sciencefiction writers

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