These pictures, taken by the Mars Curiosity Rover, could possibly be proof that aliens used to live on the planet, at least according to conspiracists. YouTube user Martian Archaeology spotted these strange forms in the rocks from Nasa’s pictures, zoomed in and uploaded them to the site for more opinions.

He was unsure of what they were, as were most viewers. However, once someone pointed out they looked bones, conspiracists took it and instantly thought they were fossils of life on Mars.

Jeffrey Pritchett, a UFO conspiracy theorists believes that they’re “the fossilized remains of a creature.” He continued by saying:

It’s hard to tell what this looked like originally, but some of its remains are a little way away from it, at the lower part of the photo.

Nasa, who originally published the photos, hasn’t said anything regarding the idea of aliens—past or present—on Mars. It looks like we’ll have to wait to find out if alien life exists from Stephen Hawking instead.

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