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SuperCam identifies minerals and rock compositions, and it seeks organic compounds that could be related to past life on Mars. It has a laser that can zap and study areas on a rock as small as the period at the end of this sentence. All from about 20 feet, or 7 meters away. Its camera and spectrometers then examine the rock's chemistry. The microphone on SuperCam gives scientists another "sense" with which to probe the rock targets they are studying.