Perseverance Mars rover spots ‘shark fin’ and ‘crab claw’ rocks on Red Planet (photo)


It looks like something fishy is happening on Mars. NASA’s Perseverance Rover recently spotted a shark-fin-looking outcrop and an accompanying crab-claw-like boulder on the Red Planet.

Since arriving on Mars on Feb. 18, 2021, the rolling robot has been exploring the Jezero Crater on Mars while hunting for signs of ancient life. But these strange rocks, captured on Aug. 18, 2023, came as surprise.

Even though the now barren and arid landscape of Mars overflowed with water billions of years ago, there is no evidence that the planet was abundant with any sort of seafood, and these images certainly don’t change that. Instead, what the rocks in the image evidence is the phenomenon of pareidolia.

The infamous Face on Mars, an illusion created by shadows that caused quite a stir in the 1970s and 1980s. (Image credit: NASA)

Pareidolia refers to the brain’s tendency to perceive a meaningful image from random visual data. It is the reason we see dogs or clowns in clouds, and it has been responsible for humans catching a wide variety of famous figures in foodstuff. And Mars is no stranger to being subjected to pareidolia.


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