A BIZARRE object dubbed the Roswell Rock has continued to spark conspiracy theories 13 years on from its discovery.
The stone, found in the New Mexico desert in 2004, displays a bizarre pattern and allegedly otherworldly magnetic properties.
It was unearthed near the site of the alleged Roswell UFO crash site in the same state.
Discussion of the "extraterrestrial" pebble has bubbled up again after Tyler Glockner, founder of the website Secure Team 10, made a video discussing where it came from.
The alien hunter said: "It was discovered back in 2004, sticking out of the dirt in Roswell, New Mexico, in a basically barren, empty area of desert close to where the infamous Roswell crash occurred."
"The rock was very smooth, rounded, and it contained these mysterious symbols that looked to show almost what looks like a lunar cycle of the Moon.
"It's been theorised that this rock may have been part of the wreckage from the Roswell crash.
"Or, that this rock - which is said to hold some very mysterious powers, was actually left behind by a previous alien visitation, and that the Roswell crash was what occurred when these aliens had come back to Earth to retrieve the mystery rock."
Following a crash in the area in 1947 alien obsessives from around the world have alleged a cover up was conducted by the US government.
The official story is that a US Air Force Balloon crashed near a ranch near the New Mexican town but many think the balloon was actually an alien spacecraft.
Interest in the UFO theory peaked in the 1970s and still persists to this day, despite a report released by the US military in the 1990s which revealed that the object was actually a nuclear test surveillance balloon.
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