Saturn

Saturn was the most distant of the five planets known to the ancients. Being similar to Jupiter, Saturn is mostly made of hydrogen and helium. Though its rings are mostly made of chunks of ice and small amounts of carbonaceous dust. The rings are very stretchy (very = 120700 km) but are amazingly thin (amazingly = 20 m).
Having a moon that has a 1/3 of the Earth's radius, there is a possibility that Saturn's largest moon Titan might contain life just like on Earth. Its conditions are similar to Earth's early ears, the main difference being that it's much colder than Earth because of its larger distance from the Sun (9.54 *Au). This is an active open topic and discussion of scientific assessment and research.