NASA's Curiosity rover made an unexpected discovery by accidentally driving over a rock and crushing it on May 30, 2024, on the 4200th Martian day (sol) of its mission. Pure sulfur crystals were found inside the destroyed rock. This came as a surprise to the scientific team, as similar finds on the surface of Mars had not been previously documented. The discovery was made by chance during the rover's routine traversal of the Martian surface. Scientists are studying the composition and origin of these crystals, which could provide new information about Mars' geological history and the processes that occurred on the planet in the past. Curiosity continues its long-running mission to study the Martian surface, collecting data on the composition of the planet's soil and atmosphere. The discovery of sulfur crystals adds new details to our understanding of Mars' mineralogical diversity and may help in investigating the question of the planet's potential habitability in the past.