Last Modified: 2011-07-01
Earth radius = 2x mars' radius
mars radius = 2x moon's radius
Orbital period: 1.88 years
Rotation: 24 hrs, 37 mins
martian seasons are similar to Earth seasons (only longer)
-mars express orbiter
- mars exploration rovers spirit & opportunity
-95% CO2, only traces of water vapor
-Martian air pressure is just 0.7% of Earth's. (being at altitude of 30 km on Earth)
-avg temp = -50C = -58F
-Gusty winds lead to "dust devils"
huge dust storms can enshroud the entire planet
Surface of mars looks like a desert b/c it IS a desert
mars is divided between old cratered highlands and younger, smooth lowlands
-located over a "hot spot" in the martian mantle
-it last erupted 300 myr ago (extinct or dormant)
-its a rift valley over 4,000 km long
-Some narrow gullies
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