!['Horrific Sandworm' Structures Discovered on Mars 'Horrific Sandworm' Structures Discovered on Mars](https://i.ytimg.com/vi/1SBOHPV2a3I/maxresdefault.jpg)
#shorts Astronomy Facts: The NASA Curiosity exploration rover took this photo of a strange 'slithering' rock formation on the surface of Mars, the fourth planet in the Solar System. The slithering structures on the Martian surface were caused by erosion, according to the Search for ...
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