Jupiter’s moons Ganymede and Callisto contain liquid water oceans, but these are sandwiched between upper and lower layers of ice, making them less interesting from an astrobiological perspective than Europa and Enceladus because there is no contact between the liquid water and the satellites' silicate cores.

Authors

• Person: Not available Organization: National Academies of Sciences, Engineering, and Medicine
  Read "Review and Assessment of Planetary Protection Policy ...

Sources

• Read "Review and Assessment of Planetary Protection Policy ... nap.nationalacademies.org National Academies of Sciences, Engineering, and Medicine via serper

Referenced by nodes (3)

• Enceladus location
• Jupiter location
• Europe location