Which Of The Following Moons Most Likely Has Life?

NorthwestRider
Some of these moons are major players in the news for extraterrestrial life. NASA is spending billions of dollars to find life on these moons. Not on their surface but in their below surface ocean!!
Europa (Jupiter)
Titan (Saturn)
Io (Jupiter)
Ganymede (Jupiter)
Callisto (Jupiter)
Triton (Neptune)
The Moon (Earth)
Select gender and age to cast your vote:
Which Of The Following Moons Most Likely Has Life?
3 Opinion