Curiosity Finds Inexplicable Martian Spheres,

NASA“s Curiosity Rover had found Spheres in Mars, which are baffling in Geological Terms.

Those in which the outer layer has been eroded contain  concentric internal structure.

Story:

Small spherical objects fill the field in this mosaic combining four images from the Microscopic Imager on NASA’s Mars Exploration Rover Opportunity. The view covers an area about 2.4 inches (6 centimeters) across, at an outcrop called “Kirkwood” in the…

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