Mars imformation???????
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Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
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Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury. ... Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth.
Surface area: 144798500 km2; (55907000 sq mi; 0.284 Earths)
Mean radius: 3389.5 ± 0.2 km; (2106.1 ± 0.1 mi)
Mean density: 3.9335 g/cm3; (0.1421 lb/cu in)
Equatorial rotation velocity: 241.17 m/s; (868.22 km/h; 539.49 mph)
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