Mars Science Laboratory
Jezero was one of the sites considered for exploration by the Mars Science Laboratory. Clay minerals have been detected in and around the crater. The Mars Reconnaissance Orbiter identified smectite clays. Clays form in the presence of water, so this area probably once held water and maybe life in ancient times. The surface in placs are cracked into polygonal patterns. Such shapes often form when clay dries out. These patterns can be seen in the image below. The image shows a channel that carried water and seduiments into Jezero Crater.
The aim of the Mars Science Laboratory is to search for signs of ancient life. It is hoped that a later mission could then return samples from sites identified as probably containing remains of life. To safely bring the craft down, a 12 mile wide, smooth, flat circle is needed. Geologists hope to examine places where water once ponded. They would like to examine sediment layers.
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Channel that carried water into Jezero Crater and close-up of clay deposits.
Read more about this topic: Jezero (crater)
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