Reproduced here from Jim Stone's website in case that gets shut down. See the original webpage for full detail at: http://jimstonefreelance.com/mayanmars.html
"Trolls are going to have a tough time when anyone with Photoshop can take the original image, apply standard filters (no editing, only filters) and pull the detail out and see that it is real. All it takes to get the basics and confirm this really is a stone carving is levels or curves. This is going to screw the trollage.
This is a bona fide image from the Mars Rover. This came straight from JPL. It proves a civilization did exist on Mars, and Mars had to have been destroyed.
I had my doubts the rovers were real. I thought they were really somewhere in the desert Southwest [on account of man-made artifacts like coins and Earth animal bones being spotted in the Mars images]. But there are no Mayan heads to be found in the United States, and I doubt NASA would try to pull a fake rover stunt elsewhere.
Obviously NASA is silent on this, stupidly stating that it is a natural rock formation (don't you know that is a plagioclase feldspar mixed with calcite, quartz and bauxite, the miraculous combination that always spits out a carved head?), so you saw nothing there......RIGHT.
.....The rovers really are on Mars and they are driving around the surface of a recently destroyed planet that was very much like Earth not so long ago. There are coins showing up from whatever civilization was there showing up in the rover photos: bones, animal skulls and now this carved head.
No doubt about it, Mars was inhabited and the superb condition of the relics that have turned up proves Mars was destroyed only a very short time ago.
Original image "Mastcam Right 2013-02-11 00hr 30min 54s UTC"