Cool Greebly Mars Rock!

by Autonomeritus

Community

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Saturday, Oct. 06, 2012 Saturday, Oct. 06, 2012 at 11:20:46am PDT

Look at this rock on the left in these Curiosity pics... how did it get so greebly?? Is it a partly-dissolved chunk of limestone? Calcified Martian squid fossils from 100 million years ago? A frozen fragment of a morphing Thing?

Curiosity Mastcam Left Sol 57

Curiosity Mastcam Left Sol 56

(Be sure to click the images up to full size when they display.)