Essay about Mars and the Earth

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Mars and the Earth

Geologists study the surface of both Mars and Earth by using interplanetary comparative analysis to further their understanding of the two planets. In some ways, Mars resembles Earth. Features on Mars such as an atmosphere, a wind-modified surface, near-surface water, volcanism, seasons, ice caps, dust storms, and channels can be found on Earth as well, albeit slightly different in origination or intensity. Despite their similarities, their differences are profound. Their acute differences in their tectonic framework and their quantities of liquid water affect the geological theories behind the formation of the surface of Earth and Mars. By investigating these similarities and differences, geologists can grasp
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The presence of seasons on Mars and Earth is one such phenomenon for comparison. Moore and Cross assert that the seasons on the two planets have the same general characteristics due to their similarity in axial inclinations; that is, Earth is 24 degrees versus 23.5 degrees, however, their seasons are different in length and intensity (12). According to Michael Carr in The Surface of Mars, the similarity in axial inclinations yields analogous temperatures to occur on Earth and Mars during their respective seasons (4); or, in other words, on both planets the temperatures are warmer during the summer months than during the winter months. However, a recent study of the summer season on Mars completed by Mark Richardson of the California Institute of Technology claims that there is an extreme difference in orbit between Mars and Earth, and, unlike Earth whose southern summer is similar to its’ northern summer, Mars’ large variation in orbit places the planet 20 percent closer to the sun when it is summer in the south. This, in turn, causes the summer season to be much more intense in the southern hemisphere than in the north (McCall, Valley News, C1). In terms of seasonal length, Michael Carr states that the Martian year is considered to be 687 Earth- days (Surface 3). Thomas Mutch, Associate

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