Saw this doing the rounds recently on some paranormal websites and thought I'd post it. There's claims that a humanoid skull has been found in a photo taken by NASA's Spirit rover on Mars. http://www.theepochtimes.com/n3/1091762-ufo-sightings-alien-skull-found-on-mars-blog-claims/ http://www.huffingtonpost.com/2014/11/21/mars-skull_n_6197204.html Here's the photo from NASA's archives that is the basis for the claim. You can see a vaguely skull shaped rock with "eye sockets" and "nasal cavity" in the upper left of the photo. edit: NASA's Spirit PANCAM archive for Sol 482 for reference sake from which the above image came from - http://mars.nasa.gov/mer/gallery/all/spirit_p482.html However, it's just a trick of the light. A near overhead sun is causing long harsh shadows from minor features on the surface of the rock. The next day, Spirit snapped more photos of the same area and you can see the same rock in the upper left of the photo below (it's in the exact same place relative to the top left of the feature as in the image above). When the sun isn't high in the sky and causing the same shadows, you can see that the rock is rather plain and featureless and flat-faced and doesn't vaguely resemble a skull anymore. edit: NASA's Spirit PANCAM archive for Sol 483 for reference sake from which the above image came from - http://mars.nasa.gov/mer/gallery/all/spirit_p483.html Saw this posted on a couple of websites and it took less than 5 minutes to find an alternative picture that shows it to be not quite the amazing find it's touted to be. It's amazing how Martian "anomalies" disappear when viewed at from a different angle or a different time of day.