Date of discovery: Sept 14, 2016
Location of discovery: Mars, sol 2160, Opportunity
Source Mars photo: http://areo.info/mer/opportunity/2160/tn/1P319940734EFFABCXP2377L5M1_L2L5L5L7L7.jpg.html
I was searching in NASA archives and found this interesting large face. Then…when my eyes adjusted to the photo, I was able to see the other two faces, one on its right, and one on its left side. This one was made in layers…which is confusing to me. Of course an alien culture will design sculptures using different techniques to humans, but this is really off the charts.
Scott C. Waring