Explore the fascinating interior structure of Jupiter's moon Europa in this 21-minute educational video. Delve into the three distinct layers of Europa - its iron or iron-sulfide core, silicate mantle, and water shell - and learn how scientists have determined this composition using remote sensing data. Discover the principles of gravity science and how it helps determine the densities of planetary bodies' interiors. Examine the formation of Europa and the evidence supporting the existence of a liquid water ocean beneath its icy surface. Investigate both geologic and magnetic field data that provide crucial insights into Europa's composition. Learn about the upcoming Europa Clipper mission and its objectives. Gain a comprehensive understanding of Europa's internal structure and the scientific methods used to study distant celestial bodies.