New photos show multiple large holes in one of the wheels of NASA’s Curiosity rover; This suggests that 12 years of wandering through the Red Planet’s harsh terrain took its toll on the intrepid traveler.

Curiosity first landed on Mars on August 5, 2012, and was initially expected to stay there for only two years. But the rugged rover exceeded expectations, lasting 4,323 Martian days, or sols, on the Red Planet and traveling more than 20 miles (32 kilometers) around Gale Crater, where it first touched down.

During this time, “Curiosity” was used by scientists to study the skies of Mars, look for signs of extraterrestrial life, and spy on the far side of the Sun. The rover also discovered numerous oddities on the Red Planet, including a book-shaped rock, a mineral flower, an iconic Star Trek symbol and a mysterious “alien” door.

But new photos taken by Curiosity’s Mars Hand Lens Imager (MAHLI) and released by NASA on September 24 show that the rover’s epic journey damaged the rover’s middle right wheel. The images show several large tears in the wheel’s severely scratched rubber, including a particularly large hole that exposed the wheel’s internal mechanisms. It is not yet clear when these holes first appeared and whether the rover’s other wheels suffered similar damage.

The damage may look bad, but Curiosity “is still in good shape despite the worst abuse from Mars,” mission operations engineer Ashley Stroup wrote in a statement.

There are no signs that the rover will stop anytime soon. But if it happens, it will join the growing list of recent robotic casualties on Mars; This includes China’s Zhuron rover, which reportedly ended its mission last year after months of speculation about its inactivity, and NASA’s Ingenuity helicopter, which sent the last one. Message to the Earth in April.