关于这张图
NASA's Perseverance Mars rover generated this mineral map showing the presence of two minerals – vivianite (purple and pink) and greigite (dull yellow and green) – on the surface of a rock nicknamed "Cheyava Falls." The data helped scientists determine the rock contained a potential biosignature, which is a substance or structure that might have a biological origin but requires more data or further study before a conclusion can be reached about the absence or presence of life. Perseverance's PIXL (Planetary Instrument for X-ray Lithochemistry) and SHERLOC (Scanning Habitable Environments with…
