At the bottom of the 154km-long Gale Crater, NASA's Curiosity Rover snapped an image of what appears to be rows of spiked plates and wedges — which may have been caused by UFOs
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NASA Mars Exploration
BBC - Lincolnshire - Places - UFOs in Lincolnshire
NASA Mars Exploration
BBC - Lincolnshire - Places - UFOs in Lincolnshire
UFO spotter discovers 'crashed alien spaceship' on Mars in footage
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Scientists suggest alien spaceship 'may have crash-landed on Mars
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The Space Review
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