Saturn's moon Titan belongs to a very ... a so-called primary atmosphere. It consisted mostly of hydrogen and helium, the two elements that today make up 98 percent of the sun and gas giants ...

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. As we plummet through the ...

Saturn, the sixth planet from the Sun, captivates scientists with its massive size, stunning rings, and diverse moons.

While all the ingredients are there, the moon's composition likely prevents them from coming together in any meaningful way.

Vaporous plumes erupt from between the cracks on the icy exterior of the subsurface ocean on Enceladus, one of Saturn’s many moons. These geysers contain molecular hydrogen, a potential source of ...

Meanwhile, hydrogen and other very light gases drift deep into space. Our planet has a magnetic field that thankfully protects the atmosphere — without it, a never-ending stream of particles ...

This composite image shows the Saturn Lyman-alpha bulge ... effects cause an atmospheric heating that makes the upper atmosphere hydrogen reflect more Lyman-alpha sunlight in the bulge region.

while Saturn’s moon Titan has a thick nitrogen atmosphere and lakes of liquid methane. After the solid core is formed, the planet begins to capture large amounts of hydrogen and helium from the ...