关于这张图
NASA's Perseverance Mars rover captured this image of a rock target nicknamed "Quartier" with the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) camera belonging to an instrument called SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals). The rover uses a tool to abrade the surface of a rock (as with the circular portion in this image), removing dust, debris and other material that has settled on the rock's outer surface. After that's complete, instruments like SHERLOC can study the rock's composition. The white squares show areas…