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Gas giant


A gas giant is a giant planet composed mainly of hydrogen and helium. Jupiter and Saturn are ... something of a misnomer, because throughout most of the volume of all giant planets the pressure is s...

What are planets made of?


The other planets are not solid. Jupiter, for instance, is made up mostly of trapped helium, hydrogen, and water. In our solar system, the four "gas giants" are ...

Gas Giants: Facts About the Outer Planets - Space.com


Aug 25, 2015 ... The solar system's outer planets — Jupiter, Saturn, Uranus and Neptune — are mainly ... Orbits and sizes are not shown to scale. Credit: NASA. A gas giant is a large planet composed mostly of gases, such as hydrogen and ...

Q & A: Planets made of gas | Department of Physics | University of ...


Why are the inner planets are made of rock and free of gas and the outer ... small planets do not have a gravitational pull strong enough to hold lighter gases in, ...

If Jupiter and Saturn are gas giants, could you fly - NASA Space Place


If Jupiter and Saturn are gas giants, could you fly straight through them? ... So it makes sense to think that a gas planet must be like a big, airy cloud floating out in space. ... Scientists do not understand the properties of matter under the extreme  ...

What are the cores of the gas giants made up of? | - About Space


Apr 27, 2013 ... A theory surrounding the formation of giant planets of gas suggests that there is almost definitely a core. This idea is called the bottom-up theory ...

The Outer Planets of the Solar System - Universe Today


Jul 5, 2016 ... Although mainly composed of gas, the outer planets also have other ... Jupiter is not only the largest planet, it also has the most moons – 63 ...

The Inner Planets of Our Solar System - Universe Today


Jun 25, 2016 ... For starters, the inner planets are rocky and terrestrial, composed mostly of silicates and metals, whereas the outer planets are gas giants. ... atmosphere, but it's not just man-made objects that have trouble getting through.

What Is The Atmosphere Like On Other Planets? - Universe Today


Jan 8, 2016 ... Here on Earth, we tend to take our atmosphere for granted, and not without reason. ... the planet, whether it is a terrestrial or a gas/ice giant, the gases that ... Earth's atmosphere, which is composed of nitrogen, oxygen, water ...

What is Jupiter Made Of? - Universe Today


Apr 26, 2016 ... Jupiter is mainly composed of hydrogen and helium just like a star. ... to 36,000 K. The planet is not just a ball of gas that you would be able to ...

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General Planet Information - Nine Planets for Kids


The rocky planets are mostly made up of rock and metal. These planets are very heavy and move slowly. They also do not have rings and very few moons. GAS ...

What are planets made of? | Reference.com


The inner planets, Mercury, Venus, Earth and Mars, are made up of silicate rock and heavy metals such as iron and ... Despite being made up mostly of gases, the outer planets have a rock core. ... Why is it that stars twinkle but planets do not ?

The Outer Planets: Giant Planets: What Are They, and Where Are ...


SUMMARY: The jovian planets are essentially big balls of gas, each ... Made almost entirely of hydrogen and helium, these planets do not have solid surfaces.