An alien hunter has posted a video to YouTube that appears to show a Stonehenge-like structure on Mars.
If you try and ignore the weird robotic voice and wannabe eerie music, the pictures seem to back up 'Mister Enigma's' claims.
In a bid to explain the circular set of stones, dubbed "Marshenge," the keen YouTuber even goes so far as saying that aliens visited the earth and built Stonehenge.
"I'm just saying there is something strange about this area and that it looks very much like the mysterious ancient stones of Stonehenge.
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"Could the builders of Stonehenge have visited Mars and did they build the same thing there or did we have visitors teach us how to build these things and do the same for long lost beings on mars as well, or is this just another face on mars illusion."
Alien expert Scott C. Waring has also waded into the conversation and backed the findings reported in the video.
Waring said: " I have seen it many times in dozens of photos of Mars, always a circle. Sometimes with big rocks, sometimes smaller, but always on small hills only."