posted on Mar, 30 2015 @ 06:25 AM
a reply to: skyblueworld
It looks like something exposed in the course of erosion of surrounding terrain. Not a disk but maybe a bridge -- or a ring of material, hollow in the
middle. You can see a ridge running from below and then behind the frontmost portion of the structure which to me looks like an irregular polygon, not
It's hard to tell what sort of terrain this is. Portions of the image (see above the anomaly) look like exposed ice. Other areas look most like salty
flats -- the oft-discussed perchlorates that are so abundant in the surface soil of mars.
Whatever it is, I remind myself always that Mars' surface is a product largely of wind erosion. A such many odd shapes may appear -- macroscopically
or otherwise. Compare this image or the odd, life-like or fossil-like rocks captured by the rovers with photos of rock formations on the dry valleys
of Antartica, or the land bridges of Utah and elsewhere. It could be an artifact, or maybe something the wind, and erosion, dragged up.