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Mars has a number of interesting features that make it one of the most studied planets in the solar system. One of the most often noted features of Mars is its reddish color, which earned it the nickname the Red Planet. ... More »

The surface of Mars contains many unique features, including prominent shield volcanoes, large canyons and caves, pronounced depressions from wind and water erosion and polar caps. In addition to having these features, M... More »

www.reference.com Science Astronomy

The planet Mars is home to Olympus Mons, the tallest volcano in the solar system. Valles Marineris, also located on Mars, is the largest known canyon found on any planet within the solar system. More »

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Mars is the second smallest planet in the solar system, with a diameter of just over 4,212 miles and a circumference of 13,256 miles. Its diameter is about 53 percent that of the Earth. Among the major planets, only Merc... More »

The best time to view Mars is during the Mars Close Approach, which is when the orbits of Mars and Earth bring the planets closest together. When Mars and Earth make this close approach, Mars can be seen from sunset to s... More »

www.reference.com Science Astronomy Planets

As of 2014, scientists believe Mars is the most likely planet in Earth's solar system, outside of Earth, to support human existence. However, this doesn't say much about the potential for life on other planets, as many m... More »

Mars is similar to Earth in the fact that both planets have about the same amount of dry land surface. Both planets also have volcanoes and impact basins. More »