Mars
Like Earth, Mars has differentiated into a dense metallic core overlaid by less dense materials. Scientists initially determined that the core is at least partially liquid. Current models of its interior imply a core consisting primarily of iron and nickel with about 16–17% sulfur.
Source: Wikipedia
rotation time
1.03 Days
revolution time
1.88 Years
radius
3,389.5 KM
average temp.
-28°c