What material is Mars made out of?
Mars is made of much the same substances as Earth.
The percentages are different, but Mars has a central core of metallic iron and nickel surrounded by a mantle and crust that consists of silicates, metals, and other components of rocks.
The most abundant elements in the Martian crust are silicon, oxygen, iron, magnesium, aluminum, calcium, and potassium.
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Less abundant elements are titanium, chromium, manganese, sulfur, phosphorus, sodium, and chlorine .
The atmospheric pressure on Mars is only about 1 kPa.
Its composition is 95.3 % ##”CO”_2##; 2.7 % ##”N”_2##; 1.6 % ##”Ar”##; 0.1 % ##”O”_2##; 0.1 % ##”CO”##; plus small amounts of other gases.