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Post by George J. Haas on Jun 7, 2010 9:05:10 GMT -5
The MRO HiRISE camera takes new image of one of Carl Sagan’s Elysium Plantitia pyramids that were originally observed in pictures taken by Mariner 9.  Note four sided pyramidal shape. HiRISE image: www.uahirise.org/ESP_017574_1965GJH |
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Post by marsrocks on Jun 13, 2010 17:23:40 GMT -5
I would be interested in information on "polyhedral bedrock." Does this occur on Earth? Are there some Earth examples? How does it form?
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Post by faolgeal on Jun 15, 2010 16:19:03 GMT -5
I would be interested also in knowing if this polyhedral bedrock occurs on Earth or the moon. There are so many of these pyramid type formations on Mars. What fascinates me most are the glass tunnels. I don't see how these can in any way be considered "natural" or tricks of the light...
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Post by starjim on Feb 19, 2011 10:03:22 GMT -5
One of my very favorite places. TIme permits I'll look into this much deeper but that image says it all. Sagan saw what he saw.
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