Yes, we’ve explored all known planets, except Pluto, in one way or another. Well, we now know that Pluto is not considered a planet anymore! Though we have explored these planets, we have not been able to land on all of these. We have only landed on Venus and Mars while we’re observed other either by means of flybys and orbiters. We have also landed on Earth’s moon and on Saturn’s moon. One spacecraft did manage to enter the atmosphere of juniper but the contract was lost before it could be known whether it reaches a solid surface or not. However, scientists keep on building the latest spacecraft so that they can continue exploring space!
The name of Saturn Moon is Titan.