关于这张图
At left is NASA's Perseverance Mars rover. The annotation shows where spacesuit materials can be found attached to a calibration target for SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals), one of the rover's instruments. At right is a close-up of the calibration target. Scientists rely on calibration targets to fine-tune instrument settings using materials with known properties. In the case of SHERLOC's calibration target, they are also studying how the five swatches of spacesuit materials arranged along the bottom row degrade in the Martian envir…
