Charts

� Gravity (g's) 1 0.38 0.91 Length of day 24 hours 37 minutes 24 hours 117 days Length of year 365 days 687 days 225 days Axis tilt (degrees) 23.5 25.2 2.6 Average sunlight reaching the planet (watts per square meter) 345 147 655 Average surface temperature (degrees Celsius) 15 -60 460 Surface pressure (atmospheres) 1 0.008 95 Most abundant gases in atmosphere Nitrogen, oxygen Carbon dioxide Carbon dioxide Christopher McKay

Here is another chart from Scientific America showing the "ingredients" for life on Mars.

Also, you can look at a up close view of here

If you want, here are two pictures of Mars, one before, one now.

New! a virtual fly through of Mars after its been terraformed. - July 10, 2000

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