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From New World Encyclopedia
Popular Article: Mars

Mars as seen by the Hubble Space Telescope
Mars is the fourth planet from the Sun in our solar system and is named after the Roman god of war. It is also known as the "Red Planet," due to its reddish appearance when seen from the Earth. Like the Earth, Mars has a rocky surface and polar ice caps. Its rotational period and seasonal cycles are similar to those of the Earth. Of all the planets in the solar system other than Earth, Mars is thought to be the most likely to harbor liquid water, and perhaps some life forms. Consequently, popular attention has been drawn to Mars, and probes to this planet continue to be equipped with instruments to attempt to discover microscopic life.