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Mars is the Mars Mars Mars is the fourth planet from our Sun, and the last of the inner planets. We live on the third, orbiting the Sun at a distance that maintains water oceans and conditions that have supported life for around four billion years. Mars is about half the size of Earth and has two moons, Phobos and Deimos. Its surface is red due to the oxidation of iron in the soil.
The Martian atmosphere is 100 times less dense than that of Earth and primarily made up of carbon dioxide. Although Mars does have seasons, the temperature only varies from cold to extremely cold. The combination of the thin atmosphere and low temperatures make it impossible for water to exist as a liquid on the surface of Mars; it would either freeze or evaporate. The carbon dioxide, which freezes to form Northern and Southern Polar Caps, also exists only in solid and gaseous states. That means that there is no liquid on Mars. There are, however, many features on the surface of Mars that appear to have been created by great volumes of liquid.
The current lack of water and erosion by liquids on Mars has kept the surface nearly unchanged for billions of years. This offers geologists a look into the ancient past of the planet as they view craters, volcanoes and canyons. If there was liquid water to form the distinct features on Mars, that means that life could develop. Mars is smaller and, because of its greater distance from the Sun, cooler. It has seasons similar to Earths because the tilt of its rotational axis to the plane of its orbit about the Sun is about the same as Earths. Unlike Earth, the significant eccentricity of the Martian orbit means that the seasons on Mars are also affected by varying distance from the Sun.
The mean distance of Mars to the Sun is about 228 million kilometers. The Martian orbit is quite eccentric which leads to a difference of nearly 42 million kilometers between the furthest distance from the Sun and the closest distance. As for any body in a gravitationally bound orbit, Mars travels more swiftly in its orbit when it is close to the Sun than when it is distant. As a result the duration of the four Martian seasons varies one from another, unlike the case on Earth where each season lasts for just one quarter of the year. In the Martian Northern Hemisphere, winter is short and relatively mild while summer is long and cool. The Southern Hemisphere summer is short and hot while winter is long and cold.
To Humans, Mars is the next planet that must be dealt with in matters of reaping its natural resources. It is close enough to believe that within the next couple of decades, the people of Earth could conceivably land and take advantage of Mars natural resources. The Red Planet is soon within human reach, and is to be depended on for Earth s growth and survival as a planet.
Free research essays on topics related to: distance, natural resources, carbon dioxide, mars, surface of mars
Research essay sample on Surface Of Mars Carbon Dioxide
