Sunday, August 12, 2012

Strange stone


There's a strange, spherical stone on the bottom center of this image(click to enlarge). It seems to have a square or at least straight base. I wonder what it is or how it could have formed.

Here's a closeup:



This image was taken by Mastcam: Left (MAST_LEFT) onboard NASA's Mars rover Curiosity on Sol 3 (2012-08-09 05:37:01 UTC) . 

Image Credit: NASA/JPL-Caltech/Malin Space Science Systems 

For a moment I thought I found another pic of the same object but from a different angle, however it must be yet another strange object, looking quite similar. It is in this pic.



And here's a closeup: 



This image was taken by Mastcam: Left (MAST_LEFT) onboard NASA's Mars rover Curiosity on Sol 3 (2012-08-09 05:54:10 UTC) . 

Image Credit: NASA/JPL-Caltech/Malin Space Science Systems 


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