The Best Photos From Mars in 2022 | Page 4 of 13

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A precariously balanced rock

A balancing rock spotted by Perseverance. — A balancing rock spotted by Perseverance. Image: NASA/JPL-Caltech/ASU

“Okay,” you might say, “this one has got to be aliens.” But it’s not! A rock spotted by Perseverance in June could be seen very delicately situated on a large rock jutting out of the ground. The rock appears to be a precariously balanced rock (or a PBR), a technical term for a rock formation that also crops up on Earth.

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