Diameter : 6,755.2 km.
Moons : 2 phobos, Deimos
Density :- 3.93 g/cm cube
Average distance to the sun : 225.6 million km.
Time to orbit the sun : 687 days.
The Viking probes or path finders failed to find any sign of life. Beneath its this atmosphere, mars are barren, covered with pink soil and boulder. Long ago it was more active: the surface is marked with dormant volcanoes and deep chasms where water once freely flowed.
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