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  •  Zoobabwa: 
    Looks like a collapse or sinkhole to me...the cause would be the interesting part. Could be good evidence for underground water!
     751 days ago 
    0 points
  •  Dragonstarsurfer: 
    Portals to inner mars? maybe they are getting ready to launch some space craft out this portal and many others that are on mars that are airbrushed away or covered up digitally by our friends at nasa that handle all satellite imagery?
     756 days ago 
    1 point