NASA’s Perseverance Mars rover used the WATSON camera on the end of its robotic arm to conduct a focus test on May 10, 2021, the 79th Martian day, or sol, of the mission. WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) is located on the SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals) instrument, located at the end of Perseverance’s long robotic arm.
Credit
NASA/JPL-Caltech/MSSS
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