The Mars 2020 mission is part of a long-term effort of robotic exploration of the Red Planet, including looking for signs of past microbial life.
Specifically, Teledyne’s CCD42-10 sensor (right) has performed a similar role on Mars since 2012 within the ChemCam instrument on-board NASA’s earlier rover, Curiosity. The SuperCam and SHERLOC instruments of Perseverance are more advanced, however, increasing the capability to search for organic compounds and minerals.