Explore the composition of Europa's ocean in this 24-minute video lecture. Delve into geological and magnetic field evidence supporting the existence of Europa's subsurface ocean and its potential salt content. Examine surface clues, ice shell composition, and water-rock interactions that provide insights into the ocean's makeup. Learn about the role of hydrothermal vents, possible salt types, and varying salinity levels. Investigate the ocean's formation process and the presence of organic matter. Gain a comprehensive understanding of Europa's oceanic environment and its implications for potential extraterrestrial life.