The planet Mars is nicknamed the god of war. The Planet probably got its name from its red color, Mars is sometimes called the red planet. Mars" orbit is significant because it is elliptical. Mars average temperature is about -55C and at the winter poles it is almost about 27 C. There are four major land forms on Mars. Olympus Mons is the largest mountain in the solar system rising 24 km above the surrounding plain. Its plain is more than 500 km in diameter and is rimmed by a cliff 6 km high. Tharsis is a huge bulge on the Martian surface that is about 4000 km across and 10 km high. Valles Marineris is a system of canyons 4000 km long and from 2 to 7 km deep. Hellas Planita is an impact crater in the southern hemisphere over 6 km deep and 2000 km in diameter.
Most of the Martian surface is very old and scattered, but there are many other valleys, ridges, hills and plains. The most likely contrast of the sun is that its dense core is about 1700km in radius, a molten rocky mantle a little denser than the earth's and a thin crust. With Mars relatively low density compared to the other planets its appears that its core probably contains a relatively large fraction of sulfur in addition to iron. Mars also appears to lack active plate tectonics . Having no lateral plate motion, hot spots under the crust stay in a fixed position relative to the surface. There is no evidence of volcanic activity on the planet Mars. .
There lots of erosion and small floods that happen on Mars. There is other possibilities of other fluids besides water on planet Mars . The age of erosion channels is estimated to be about nearly 4 billion years. Doing to Mar's plate tectonics it is not able to recycle any of this carbon dioxide back into its atmosphere and so cannot sustain a significant green house effect. The surface of Mars is colder than the earth would be at that distance of the sun. It has a thin atmosphere composed of tiny amount of Carbon dioxide 95.
