Portal:Mars

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Mars as photographed by the Hubble telescope

Mars is the fourth planet from the Sun in our solar system. It is named after the Roman god of war Mars (Ares in Greek mythology) because of its apparent red color. This feature also earned it the nickname "The Red Planet". The prefix areo- refers to Mars in the same way geo- refers to Earth. The astronomical symbol for Mars is ♂, a circle with an arrow pointing northeast. The Chinese, Korean, Japanese, and Vietnamese cultures refer to the planet as 火星, or fire star. Mars is a terrestrial planet with a thin atmosphere, having surface features such as craters, giant valleys, and volcanoes. Of all the planets in our Solar System other than Earth, Mars is the most likely to harbor liquid water, and perhaps life. Mars is currently host to several orbiting spacecraft and two rovers, and most recently, a lander searching for water in the north polar region. It has two moons, Phobos and Deimos, which are small and oddly-shaped, possibly being captured asteroids.


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Percival Lawrence Lowell (March 13, 1855November 12, 1916) was a businessman, author, mathematician, and astronomer who fueled speculation that there were canals on Mars, founded the Lowell Observatory in Flagstaff, Arizona, and formed the beginning of the effort that led to the discovery of Pluto 14 years after his death. The choice of the name Pluto and its symbol were partly influenced by his initials PL.

Lowell was the descendant of the Boston Lowell family and had a brother and sister. He graduated in 1872 from Noble and Greenough School and Harvard University in 1876. He traveled through the Far East, particularily Korea and Japan. He later became determined to study Mars and its famed canals. He moved to Flagstaff, Arizona, where he drew maps of the canals at Lowell Observatory. In the last eight years of his life, he searched for Planet X. He was buried on Mars Hill. After his death, Clyde Tombaugh would go on to discover Pluto at Lowell Observatory.

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Credit: Uploaded by User:Dhenry

Valles Marineris is a vast canyon system that runs along the Martian equator. At 4,500 km long, 200 km wide and 11 km deep, the Valles Marineris rift system is ten times longer, seven times wider and seven times deeper than the Grand Canyon of Arizona, making it the largest known crevice in the solar system.

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