Saturn

Saturn is so light, it could float on water (if it was smaller). Its biggest moon Titan is almost as big as Ganymede, which is Jupiter's moon. Titan has an atmosphere and I think Saturn caught Titan because Titan was once a rocky planet and got too close to Saturn and Saturn caught it.

Saturn has got beautiful rings and Saturn's rings are made out of icy rocks.

Saturn is the second biggest gassy planet. Saturn is a gas giant and the gas giants are Jupiter and Saturn.