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Cydonia (Mars) : ウィキペディア英語版 | Cydonia (region of Mars)
Cydonia (, ) is a region on the planet Mars that has attracted both scientific and popular interest. The name originally referred to the albedo feature (distinctively coloured area) that was visible from Earthbound telescopes. The area borders plains of Acidalia Planitia and the Arabia Terra highlands. The area includes the regions: "''Cydonia Mensae''", an area of flat-topped mesa-like features, "''Cydonia Colles''", a region of small hills or knobs, and "''Cydonia Labyrinthus''", a complex of intersecting valleys. As with other albedo features on Mars, the name Cydonia was drawn from classical antiquity, in this case from Kydonia, a historic polis (or "city-state") on the island of Crete. Cydonia contains the "Face on Mars" featurelocated about half-way between Arandas Crater and Bamberg Crater.〔 ==Location==
Cydonia lies in the planet's northern hemisphere in a transitional zone between the heavily cratered regions to the south and relatively smooth plains to the north. Some planetologists believe that the northern plains may once have been ocean beds and that Cydonia may once have been a coastal zone.
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