Monday, June 18, 2012

MARS

http://universespeedanddistance.blogspot.com./delorie.htm
     Mars has approximately half the radius of Earth. It is less dense than Earth, having about 15% of Earth's volume and 11% of the mass. Its surface area is only slightly less than the total area of Earth's dry land.[5] While Mars is larger and more massive than Mercury, Mercury has a higher density.  The red-orange appearance of the Martian surface is caused by iron(III) oxide, more commonly known as hematite, or rust.  Mars’ greater distance from the Sun leads to the Martian year being about two Earth years in length. Martian surface temperatures vary from lows of about −140 °C (−220 °F) during the polar winters to highs of up to 20 °C (68 °F) in summers.[26] The wide range in temperatures is due to the thin atmosphere of mars.
      Mars also known as the red planet and named after the Greek god of war. There are two moons circling the planet looking more like asteroids than moons. Mars is probably the most famous planet in the entertainment field due to the fact of flying saucers and martians in movies and radio broadcast like the one by Orson wells "war of the worlds".


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