A theory involving a "mushy zone" of ice along the moon’s fissures could explain the enormous plumes erupting from its south ...

"We have observed giant gas planets, such as Jupiter or Saturn, but in another solar system," explains the leader of this research on the HR 8799 system, located 130 light-years away. The study ...

There is no surface below. Saturn's made almost entirely of hydrogen and helium gas, which is why it's called a gas giant. 4,000 kilometers above the surface, we hit Saturn's upper atmosphere.

Hydrogen is the most abundant element in the ... miles of ocean on a distant world like Jupiter's moon Europa or Saturn's moon Enceladus. That's why the best way to search for alien life today ...

Meanwhile, Saturn is 9.5 astronomical units away from the sun, according to astronomers. Instead of a rocky surface like Mercury, hydrogen and helium mostly make up Saturn’s surface, with ...

Saturn, the sixth planet from the sun, is a gas giant known for its prominent ring system, composed of ice particles, and is the second-largest planet in our solar system, after Jupiter. Saturn is ...

Instead of a rocky exterior like Mercury, Saturn is made up of mostly hydrogen and helium, with prominent rings made of ice, dust and rock. Saturn is also not the only ringed planet, as all of the ...