M.A.R.S. Making Astrophysics Real for Students><br>
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Quick Facts About Mars
Mean distance from Sun 227,900,000 km
Shortest distance from Earth 55,700,000km
Greatest distance from Earth 399,000,000km
Mass 11% that of Earth
Radius 53% that of Earth
Rotation period 24.6 hours
Revolution Period 1.88 years
Moons 2: Phobos, Deimos

Martian Climate


A Martian Geography Lesson


The Red Planet's Composition and History


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