Saturn

In our solar system, the objects with rainfall, rivers and oceans can be counted on two fingers: Earth, and Saturn's moon Titan. Both also share a thick atmosphere, rocky ground and plate tectonics.

Saturn's giant newfound ring is even larger than previously thought, spanning an area of sky nearly 7,000 times larger than Saturn itself, researchers say.

Scientists find the first hint that Titan's methane and ethane lakes may be stirring in response to the summer warmth, similar to lakes on Earth.

There are many mysteries about the enigmatic ringed gas giant, but the curious mechanism behind Saturn’s ‘spokes’ is one of the more intriguing puzzles.

A far-flung NASA space probe flying around Saturn zipped past the ringed planet's biggest moon for the 100th time. The Cassini spacecraft made its closest approach to the hazy moon Titan on Thursday.