Martian Rover

"While working its usual Martian shift, the rover stumbled upon, rather drove over, a rock and cracked it wide open, revealing a sight never before seen on Mars – a dazzling display of yellow sulfur crystals."https://www.earth.com/news/mars-curiosity-rover-finds-sulfur-crystals-martian-rock-hints-at-possible-life/#google_vignette