Overall, the models that fit the data place Saturn's core-envelope boundary a significant distance from the planet's center, roughly 60 percent of the way to the surface.

Saturn’s core is an unexpectedly immense mixture of ice, rock, and gas, surprising scientists who are trying to figure out how the planet formed and evolved to the enigmatic world we see today.

The core’s stability may help explain a long-standing puzzle: why Saturn emits more energy than it gets from the sun. After the planet formed, it was warm with the heat of its birth, but then it ...

A new paper suggests Saturn’s core is more like a fluid than a solid, and makes up more of the planet’s interior than we thought. With its massive rings stretching out 175,000 miles in ...

NASA’s Cassini spacecraft has allowed scientists to determine, for the first time, the pH level of the ocean beneath the icy crust of Saturn’s moon Enceladus — and it turns out to be highly alkaline, ...

Saturn is the least-dense planet in the solar system, with an average density less than that of water, meaning it would float in a gigantic bathtub. Saturn has a dense core made of metals such as ...

The researchers were able to able to build a hazy map of the core of Saturn. That core is massive, composed mainly of heavy elements, weighing somewhere between 12 and 20 times the mass of Earth ...

Jupiter and Saturn likely have regions in which helium gas separates from hydrogen. Here, the helium becomes a rain of droplets that pour towards the planet’s core.

A picture of Saturn's moon Enceladus, ... The researchers modeled how phosphorus-rich minerals might dissolve into the ocean from Enceladus’ core, writes Space.com.

A deep ocean exists beneath the icy, cratered surface of Saturn’s moon Mimas, according to a new analysis of data from NASA’s Cassini mission.