Bruce Murray Space Image Library

Fretted terrain and Deuteronilus Mensae from Mariner 9

Fretted terrain and Deuteronilus Mensae from Mariner 9
Fretted terrain and Deuteronilus Mensae from Mariner 9 A Mariner 9 photo showing fretted terrain along the boundary between Mars' southern highlands and northern lowlands. NASA / JPL / Emily Lakdawalla

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