Volcanology is the study of volcanoes, magma, and the processes that shape volcanic activity on Earth and other planetary bodies. It investigates how molten rock moves, how eruptions begin, and how gases, ash, and lava interact with the atmosphere and landscape. By analyzing seismic signals, gas emissions, ground deformation, and past eruption deposits, volcanologists work to understand eruption patterns and assess hazards. The field plays a crucial role in protecting communities and improving early‑warning systems for volcanic crises.