This is a session of contributed and invited papers on the geology and geophysics of active or recently active satellites and dwarf planets, including small exoplanets. Research is progressing rapidly due to the stream of new spacecraft and Earth-based telescope data. Additionally, there are exciting future missions to the Jovian system under development, including Europa Clipper, JUICE, and a possible future Io-focussed mission. Papers are welcomed on processes that affect the interiors of individual bodies, including Ceres and Vesta, as well as the surface expressions they produce. Included are the effects and chronology of internal heating (tidal dissipation and radioactivity), structural evolution (e.g., differentiation), tides, and other geophysical and geological processes (e.g., volcanism).