Diverse Surface Mineralogy of Mars from Hyperspectral Sensing

Hyperspectral imaging of Mars from space-based platforms has transformed our perception of it from a single "red planet" to a rich world with environments-both modern and ancient-as varied as those found on Earth. Here we provide a summary and update of minerals and mineral assemblages detected using the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on board NASA's Mars Reconnaissance Orbiter. These minerals and their mapped spatial distributions allow formulation and testing of hypotheses on how Martian environments varied across space and time. We will provide an overview of the data processing and analysis techniques used most widely to date and an outlook on how innovative approaches could yield further insights.