I study minerals, such as carbonates, clays, and sulfates, in Martian craters using visible and infrared spectroscopy. I use an instrument onboard the Mars Reconnaissance Orbiter (MRO) called the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), which is a spectrometer that measures electromagnetic (EM) radiation within the visible and near-infrared (VNIR) spectrum to study mineralogy on Mars.