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Mars Facts
Mars & Earth Comparison

Planet Mars: Click (or touch) and drag to interact with this 3D model of Planet Mars.

Mars and Earth Comparison
EARTH MARS
Average Distance from Sun 93 million miles 142 million miles
Average Speed in Orbiting Sun 18.5 miles per second 14.5 miles per second
Diameter 7,926 miles 4,220 miles
Tilt of Axis 23.5 degrees 25 degrees
Length of Year 365.25 Days 687 Earth Days
Length of Day 23 hours 56 minutes 24 hours 37 minutes
Gravity 2.66 times that of Mars 0.375 that of Earth
Temperature Average 57 degrees F Average -81 degrees F
Atmosphere nitrogen, oxygen, argon, others mostly carbon dioxide, some water vapor
Number of Moons 1 2
Mars Facts: Martian Moons
Mars Facts: Planet Mars
Mars Facts: Size
Mars Facts: Weight
Mars Facts: Distance
Mars Facts: Year
Mars Facts: Volume
Mars Facts: Temperature
Mars Facts: Structure
Mars Facts: Mass
Mars Facts: Gravity
Mars Facts: Atmosphere
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