How many satellites do Jupiter and Saturn have?

Answer 1

Jupiter has at least 67 moons (natural satellites) that have been observed and charted. 50 of these are named and the others provisionally designated.

There are no space probes currently in orbit of the planet. Galileo was crashed there in 2003, and NASA's Juno spacecraft will arrive in 2016.

Answer 2

Technically, none have ... As soon as a spacecraft leaves Earth orbit, it's no

longer a "satellite" of the Earth. It MAY still be a satellite of the sun, but it

doesn't necessarily need to be.

The exploration of Jupiter began with the arrival of Pioneer 10 into the Jovian

system in 1973, and, as of 2008, has continued with seven further spacecraft

missions. The Juno spacecraft was launched in 2011, and is planned to enter

polar orbit of Jupiter in 2016. Plans for more missions to the Jovian system are

under development, none of which is scheduled to arrive there before 2016.

These probes make Jupiter the most visited of the Solar System's outer

planets, as all missions to the outer planets must flyby Jupiter to increase the

speed of the probe without needing an excessive amount of fuel that will both

be expensive and weigh it down. Sending a craft to Jupiter entails many technical

difficulties, especially due to the probes' large fuel requirements and the effects of

the planet's harsh radiation environment.

Answer 3

As of early 2011, sixty-three (63) natural satellites of Jupiter have been observed

and their orbits calculated. There are undoubtedly more yet to be discovered.

Answer 4

Jupiter has 63 moons and Saturn has 60.

Answer 5

63 as of 2004

Answer 6

64

Answer 7

67