Image:Martian ring2.JPG

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Martian_ring2.JPG‎ (256 × 256 pixel, file size: 14 KB, MIME type: image/jpeg)

Photographed by MER-A

Appears to be a ring shaped object, hollow sphere, or "pipe"-like feature. In fact it is just a semi-circular impression made in the sand by one of the rover's instruments (to look at soil physics/chemistry). So a perfectly rational explanation.

Sol 65, Microscopic imager. Downloaded from NASA web site. Believed to be public domain.

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