Date of sighting: March 31, 2016
Location of sighting: Mars
Source photo: http://areo.info/mer/spirit/550/tn/2P175192773EFFAD24P2353L5M1_L2L5L5L7L7.jpg.html
While looking through some old Spirit rover photos, I came across a skull tilted over on once side. The other side is hard to see due to shadows, so in the above photo, I copied half and flipped it over so we could see its full face. Its a skull for sure. The eye sockets really make that clear. Also the top of the skull has a rectangle like hat or crown attached to the skull. Notice also that the skull seems to be coated with a thin blueish material...perhaps from the suns solar explosion that NASA said occurred billions of years ago.
Scott C. Waring