This 2015 discovery of water on Mars was a groundbreaking event in the history of space exploration. Scientists were able to confirm the presence of liquid water on the surface of the red planet, a major breakthrough in the search for extraterrestrial life. This discovery was made possible by the use of advanced imaging
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Spacecraft missions have provided abundant evidence of water on Mars, dating back to the Mariner 9 mission, which arrived at Mars in 1971. This article provides a mission-by-mission breakdown of the discoveries they have made.