Science ❯ Geology ❯ Planetary Geology
Europa Subsurface Oceans Europa's Surface Features Enceladus Geology Europa's Ice Shell Europa's Surface Saturn's Moons Enceladus Titan Europa and Enceladus Enceladus's Ocean Hydrothermal Activity Jupiter's Moons Europa's Subsurface Ocean Europa's Icy Shell Geological Activity Europa's Internal Structure Cryovolcanism
A measured 15-hour delay in Titan’s tidal response indicates a highly viscous interior inconsistent with a free‑flowing ocean.