Lakes on Mars
Overview of the presence of lakes on Mars / From Wikipedia, the free encyclopedia
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In summer 1965, the first close-up images from Mars showed a cratered desert with no signs of water.[1][2][3] However, over the decades, as more parts of the planet were imaged with better cameras on more sophisticated satellites, Mars showed evidence of past river valleys, lakes and present ice in glaciers and in the ground.[4] It was discovered that the climate of Mars displays huge changes over geologic time because its axis is not stabilized by a large moon, as Earth's is.[5][6][7] Also, some researchers maintain that surface liquid water could have existed for periods of time due to geothermal effects, chemical composition or asteroid impacts.[8][9][10][11][12][13] This article describes some of the places that could have held large lakes.