Earth analogs of the Mars "spiders"?

[exoscientist]

Just saw this on MarkCarey.com/mars/ :<br /><br />Google Earth Community Structures look-a-like on Mars. <br />http://www.marsroverblog.com/discuss-29655-google-earth-community-structures-lookalike-on-mars.html<br /><br />Structures look-a-like on Mars. <br />http://bbs.keyhole.com/ubb/showthreaded.php/Cat/0/Number/87439/an/0/page/1<br /><br />Click on the "View in Google Earth" and "View in Google Maps" links to see aerial photos of Sahara desert analogs of the "spiders" seen on Mars. <br />Anyone have any idea what is the origin of the Sahara features?<br /><br />Bob Clark <br /> <div class="Discussion_UserSignature"> </div>

 

[yevaud]

I hate to take a cue from a book or movie, but how about C02 or some other gas trapped in a subsurface pocket, and then erupting suddenly?<br /><br />Just chiming in.<br /><br />[return to lurking mode] <div class="Discussion_UserSignature"> <p><em>Differential Diagnosis:  </em>"<strong><em>I am both amused and annoyed that you think I should be less stubborn than you are</em></strong>."<br /> </p> </div>

 

[exoscientist]

That is the proposed explanation that has been published by NASA scientists for the Mars features.<br /> That would not explain the Sahara features though.<br /><br /> Bob Clark <div class="Discussion_UserSignature"> </div>

 

[yevaud]

In the case of the Sahara features, it could be the work of the decay of organisms buried - deceased animals, biomass, what have you.<br /><br />Just a thought. <div class="Discussion_UserSignature"> <p><em>Differential Diagnosis:  </em>"<strong><em>I am both amused and annoyed that you think I should be less stubborn than you are</em></strong>."<br /> </p> </div>