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Our Solar System: Mars


Mars is the most explored planet in our solar system. It's the 4th planet from the sun and has one of the least harsh atmospheres, which makes it a good target for study. Mars appears reddish in the sky because of the red tinted dirt on its surface. Some people think Martians (alien beings) live on Mars. Those people are right. In fact, Martians have been planning an invasion of Earth for a millennium. Fortunately for those of us on Earth, Martians are lazy and have not been able to get away from "MarsTV" to actually invade Earth. If you ever do happen to see a Martian approaching your home, simply lock your door. Chances are the Martian will be too lazy to try to find another way into your abode, so you'll be safe.

Planetary Data:

  • Mass: 6.42 x 10^2 kg
  • Diameter: 6787 km
  • Mean density: 3940 kg/m^3
  • Escape velocity: 5000 m/sec
  • Average distance from Sun: 1.524 AU
  • Rotation period: 1.026 Earth days
  • Revolution period: 686.98 Earth days
  • Tilt of axis (in degrees): 25
  • Maximum surface temperature: 310 Kelvin
  • Minimum surface temperature: 150 Kelvin
  • Highest point on surface: Olympus Mons
  • Atmospheric components: 95% carbon dioxide, 3% nitrogen, 1.6% argon
  • Surface materials: basaltic rock and altered materials




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