Perseverance Rover's Beloved Martian Rock Goes Missing

NASA's Perseverance rover on Mars has lost a rock that had been stuck in one of its wheels for over a year. The rock had been with the rover for 427 sols or days on Mars and had traveled about 10 km since Sol 341. The rock was first seen back in early February 2022 and had become a sort of pet for the rover. The rock wasn't doing any damage, but it appears that Perseverance may be looking for an even better one.