Curiosity explores Gale Crater and acquires rock, soil, and air samples for onboard analysis. The car-size rover is about as tall as a basketball player and uses a 7 foot-long arm to place tools close to rocks selected for study. Curiosity's large size allows it to carry an advanced kit of 10 science instruments. It has tools including 17 cameras, a laser to vaporize and study small pinpoint spots of rocks at a distance, and a drill to collect powdered rock samples. It hunts for special rocks that formed in water and/or have signs of organics. Strong, Smart and Curious Curiosity carries the biggest, most advanced instruments for scientific studies ever sent to the Martian surface. The history of Martian climate and geology is written in the chemistry and structure of the rocks and soil. Curiosity reads this record by analyzing powdered samples drilled from rocks. It also measures the chemical fingerprints present in different rocks and soils to determine their composition and history, especially
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