关于这张图
NASA's Perseverance Mars rover used its PIXL (Planetary Instrument for X-ray Lithochemistry) instrument to analyze the "Bellegarde" abrasion target – created when the rover scraped away surface area of the rock named "Rochette" – revealing salt minerals (the yellow color in the image). Salt crystals could have trapped bubbles of ancient water that, after the samples are returned to Earth, scientists could use to learn more about the environment these salts formed in. NASA's Jet Propulsion Laboratory built and manages operations of Perseverance and Ingenuity for the agency. Caltech in Pasadena…
