Ancient Alien Skull On Mars, July 17, 2014, UFO Sighting News.

Date of discovery: Oct 2014
Location of discovery: Mars

This alien skull was found by Youtube user Martian Archeologist.  It shows a top portion of a skull that appears to be an ancient fossil. That means the actual skull was replaced by minerals over the years, making it entirely stone. Its colors match that of its surroundings. Let me explain, I collect fossil shark teeth. These teeth have been replaced by the surrounding minerals...which also means the shark teeth get the minerals colors. Some are black others white, green, and even gold (pyrite). This Mars fossil is the same color with its surroundings. Yes it is a rock...the petrified remains of an ancient skull. SCW

Eyewitness states: 
Humanoid skull on Mars. Just another rock according to NASA.