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

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 ...

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 ...

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.

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 ...

This composite image shows the Saturn Lyman-alpha bulge, an emission from hydrogen which is a persistent and unexpected excess detected by three distinct NASA missions, namely Voyager 1 ...

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 ...

Saturn’s rings are an arresting sight even through modest telescopes. The planet is made mostly of hydrogen and helium whereas the rings are billions of pieces of mostly bright-white water ice ...

Saturn’s second stage, built by Douglas Aircraft Co., is even more sophisticated because of its uncomfortable fuel, liquid hydrogen. Space engineers admire LH2 because it provides better than ...