Mars is the fourth planet from the sun and the seventh largest.  I will explore Planet Mars Facts in the article below.

About – Planet Mars Facts

Some interesting Planet Mars Facts show that it is the fourth planet from the sun and the seventh largest.  It orbits 227,940,000 km from the sun and Mars is known as the God Of War.  The planet probably got this name due to its red colour.  Mars is sometimes referred to as the Red Planet.  Mars has been known since prehistoric times.  Even large telescopes find Mars a difficult target, it is just too small.  It is much favoured among science fiction writers as the most favourite place in the solar system, apart from earth, for human habitation.  The first spacecraft to visit Mars was Mariner 4 in 1965.

Climate – Planet Mars Facts

Planet Mars Facts

Mars has an elliptical orbit, one result of this is a temperature variation of about 30 degrees C at the subsolar point between aphelion and perihelion.  This has a big impact on Mars’ climate.  Further Planet Mars Facts reveal that the average temperature on Mars is about 218 K.  Although Mars is much smaller than Earth, its surface area is about the same as the land surface area of Earth.

Terrestrial Planet – Planet Mars Facts

More exciting Planet Mars Facts show that this terrestrial planet Mars has some of the most interesting terrain and highly varied and spectacular terrain.  Olympus Mons, the largest mountain in the solar system, Tharsis, a huge bulge on the martian surface.  Valles Marineris, a system of canyons, and Hellas Planitia which is an impact crater.  So much of this martian surface is old and cratered, all this comes from information gathered from spacecraft that has been sent to Mars.  The southern hemisphere of Mars is similar to the moon in that it is cratered highlands and the interior of Mars has a dense core and a molten rocky mantle which is denser that the Earth’s and a thin crust.

No Active Plate Tectonics – Planet Mars Facts

Hot spots under the crust stay in a fixed position relative to the surface due to no lateral plate motion.  This along with lower surface gravity may account for the Tharis bulge and its huge volcanoes.  Some Planet Mars Facts reveal that Mars did have tectonic activity in the past.

Plenty Of Erosion – Planet Mars Facts

Some interesting Planet Mars Facts include that there is clear evidence of erosion in large places on Planet Mars.  At some point in the past there was some fluid on the surface.  Liquid water is the most obvious fluid.

More Like Earth – Planet Mars Facts

Previously, Mars was more like Earth.  All of its carbon dioxide was used up to form carbonate rocks.  Some Planet Mars Facts include that lacking the earth’s plate tectonics, Mars is unable to recycle any of this carbon dioxide into its atmosphere and therefore cannot sustain greenhouse effect.  The surface of the wonderful Planet Mars is therefore much colder than the earth would be at that distance from the Sun.

To conclude, Mars has a very thin atmosphere composed of carbon dioxide plus nitrogen.  Some planet Mars Facts show that Mars has permanent ice caps at both poles, which are composed of water ice and solid carbon dioxide (dry ice).  Mars has two tiny Satellites which orbit very close to the martian surface, Phobos and Deimos.  A small number of meteorites are thought to have originated on Mars.

Planet Mars Facts

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Planet Mars Facts