A UFO expert claimed to have spotted an ancient skull as well as carved alien faces on NASA’s photos of Mars. Based on the photos, the artifacts resembled the other demonic-looking faces previously discovered by the UFO expert.

Scott Waring of ET Data Base came across the images while browsing through Gigapan, a website that provides high-resolution interactive photos. It was founded through a collaborative effort from the Carnegie Mellon University and NASA’s Ames Research Center.

While going through the site, Waring came across a photo taken by NASA’s Spirit rover. The photo showed a panoramic image of Mars with countless rocks littered across the surface.

After closely examining the rocks, a couple of them caught Waring’s attention. According to the UFO expert, some of the rocks featured in the photo were actually skulls and carvings of alien faces. Based on the images provided by Waring, the faces were monstrous-looking. One of them looked like a human skull with a slightly elongated occipital bone. The other one looked like a monster with its mouth open.

Interestingly, this isn’t the first time that Waring came across scary-looking images in photos of Mars. Previously, he claimed to have spotted a demonic-looking face on the side of one of Mars’ mountains. He saw the image through the European Space Agency’s Mars photo.

In another instance, Waring saw a carving of a reptilian face in what appeared to be an artificial wall on Mars. Since he estimated that the carving was made on a wall that was about a foot tall, he assumed that the aliens who made it were about the same height or maybe shorter.

Although most of the faces Waring saw had monstrous features, he noted that this does not automatically mean that the alien creatures who owned or made them were evil. Instead, they may have only been perceived negatively since humans are only used to seeing faces that are similar to their own.

“The face has been labeled as a demon by many of my subscribers, but it’s just a face of an alien species,” Waring stated in a blog post. “We honestly shouldn’t label them as good or bad without having met them.”