The large craters in the southern hemisphere with the name Hellas (Hellas) diameter 2000 km depth 6 kilometers features on the surface of Mars. Dale Mariners (Mariner) depth of about 2-7 km wide, approximately 4,000 kilometers of ravines, in the sprawling split down the middle. Equatorial regions of Mars There was also a similar plateau caused by flooding. Some resemble the remains of the shoreline and water. Found the remains of many grooves running water on Mars. Assuming that Mars may have had water before in the past.
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