For 6 days, NASA’s Mars rover battled a rock

NASA’s Curiosity rover encountered an unexpected challenge on Mars when it lifted a 1.5-foot-wide, 28.6-pound rock nicknamed Atacama during drilling on April 25. The rock, about six inches thick, remained attached to the drill sleeve after the rover attempted to retract its arm, posing a risk to the tool’s functionality. Mission engineers spent six days trying to dislodge Atacama without damaging the rover. Initial attempts involved vibrating the drill, but the rock stayed firmly in place. NASA then adjusted the robotic arm’s position and repeated the vibration process, which loosened some sand but not the rock itself. On the sixth day, engineers tilted the drill further and combined vibration with rotation of the drill bit. This maneuver caused Atacama to fracture and fall to the Martian surface almost immediately. NASA confirmed no lasting damage to the rover, allowing Curiosity to resume its exploration mission. The incident highlights the challenges of operating robotic equipment on Mars, where unexpected obstacles can arise. Despite the setback, the rover’s resilience and the team’s problem-solving skills ensured minimal disruption to its ongoing scientific work. Curiosity continues to analyze Martian rocks and soil, contributing to NASA’s understanding of the planet’s geology and potential habitability. The successful resolution of the Atacama incident underscores the rover’s durability and the ingenuity of its human controllers.