Los Angeles CA (SPX) Aug 15, 2025 In 2024, NASA's Mars rover Perseverance retrieved an unusual specimen named Sapphire Canyon, a red mudstone with white, black-edged spots that could reveal potential sources of organic molecules on the planet. To prepare for its eventual return, scientists from NASA's Jet Propulsion Laboratory and Caltech tested optical photothermal infrared spectroscopy (O-PTIR) on an Earth rock with simi
