The Mississippi State University Marine Geology and Geophysics Lab conducts ocean exploration and research — from coastal waters to the deep sea — focused on understanding fundamental relationships between seafloor sediment transport, morphological expression, stratigraphy, and fluid flow. We are particularly interested in processes of fluid exchange between the subseafloor and water column associated with methane seeps and submarine groundwater systems. Our technical approach is field-based and focused on the quantitative analysis of geological, geophysical, and oceanographic data collected with innovative environmental observing sensors and platforms, including autonomous, remotely operated, and human-occupied undersea vehicles. Our research informs numerous ocean science topics including ocean carbon cycling, deep-sea ecosystems, coastal water quality, shoreline dynamics, marine geohazards, energy resources, and seafloor/water column mapping.