Mars

Mars, named after the Roman god of war, this because the planet has a red colour which represents "blood shet". Mars has a mass of 641,693,000,000,000 billion kg, which is 0,107 times the mass of the earth. Mars is an almost perfect sphere with a diameter of about 6,800 km. It has a circumference of  21,297 km. The temperature on Mars varies between -87 to -5 °C. The red surface of Mars is explainable by the Iron(III) oxide, also known as rust, other colours Mars' surface has are golden, brown, tan, and greenish, depending on the minerals that are in the ground. Mars has undergone some serious differentation in the time it has existing, the result of this is a dense metallic core region overlaid by less dense materials. Mars contains a spherical region in the middle of the planet of about 1800 km in radius, this region contains primarily iron and nickel and sulfur. This inner core is surrounded by a mantle that formed many of the volcanic features on the planet.

Mars and Earth have approximately the same landmass:
Even though Mars has only has 15% of the Earth’s volume and just over 10% of the Earth’s, around two thirds of the Earths surface is covered in water. Martian surface gravity is only 37% of Earth’s (meaning you could leap nearly three times higher on Mars).
Mars is home to the tallest mountain in the solar system.
Olympus Mons, a shield volcano, is 21km high and 600km in diameter. Despite having formed over billions of years, evidence from volcanic lava flows is so recent many scientists believe it could still be active.
Only 16 missions to Mars have been successful.
Including orbiters, landers and rovers there have been 39 missions to Mars, not including flybys or the attempt to return a sample of Phobos. Since the first, USSR’s Marsnik 1, was launched in1960. Europe’s Exobiology on Mars program (scheduled launch 2016) plans to: search for possible traces of Martian life; study the surface environment; map potential hazards to manned missions in the future and begin preparations for an eventual return flight.
Mars has the largest dust storms in the solar system:
They can last for months and cover the entire planet on. The seasons are extreme because its elliptical, oval-shaped orbital path around the sun is more elongated than most other planets in the solar system.
On Mars the Sun appears about half the size as it does on Earth:
At the closest point to the Sun, the Martian southern hemisphere leans towards the Sun, causing a short, intensely hot summer, while the northern hemisphere endures a brief, cold winter: at its farthest point from the Sun, the Martian northern hemisphere leans towards the Sun, causing a long, mild summer, while the southern hemisphere endures a lengthy, cold winter.
Pieces of Mars have fallen to Earth:
Scientists have found tiny traces of Martian atmosphere within meteorites violently ejected from Mars, then orbiting the solar system amongst galactic debris for millions of years, before crash landing on Earth. This allowed scientists to begin studying Mars prior to launching space missions.