This illustration depicts the mechanism and conceptual research targets for an instrument named SHERLOC, which has been selected as one of seven investigations for the payload of NASA's Mars 2020 rover mission.

This illustration depicts the mechanism and conceptual research targets for an instrument named Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals, or SHERLOC. This instrument has been selected as one of seven investigations for the payload of NASA's Mars 2020 rover mission. SHERLOC will be a spectrometer that will provide fine-scale imaging and use an ultraviolet laser to determine fine-scale mineralogy and detect organic compounds. .

Mars 2020 is a mission concept that NASA announced in late 2012 to re-use the basic engineering of Mars Science Laboratory to send a different rover to Mars, with new objectives and instruments, launching in 2020.

NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages NASA's Mars Exploration Program for the NASA Science Mission Directorate, Washington.

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