That's the tidal locking.The Moon's centre of gravity is closer to the earth than it's geometrical center。Just like that there is a tight rope between the earth and the moon,and the moon faces us only with one side.
Jungle Cruise
No, just his backside.
no
With a telescope
He saw 4 moons
Yes, it is possible to see Jupiter's four largest moons, known as the Galilean moons, with just a pair of binoculars or even with the naked eye. These moons are Io, Europa, Ganymede, and Callisto.
See related link for a full list of all 61 moons
Saturn has 60 known moons that have been discovered and verified so far. See the Related Link. Saturn has 62 known moons.
1
If you see two moons, either you are no longer on planet Earth (which has only one moon) or you are suffering from double vision.
Please see related question for a complete listing of Jupiter's 40+ moons.
Uranus has 27 moons and Neptune has 13 moons