This image was taken by NASA’s Mars Reconnaissance Orbiter (MRO) Context Camera (CTX) on 2007-01-08T00:38:33.833.
NASA describes this image as ” Deuteronilus Colles and surrounding landforms.”
Case #18: More disc-like objects and another triangular object on Mars:
I discovered three more disc-like craft, another triangular craft and mining machinery on the Martian Surface.
Original NASA source: http://viewer.mars.asu.edu/planetview/inst/ctx/P03_002112_2208_XN_40N337W
I used NASA’s image viewer to the left of the page to view these anomalies.
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