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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 ...

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.

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


Aug 25, 2015 ... 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 helium, ...

Solar System Facts: A Guide to Things Orbiting Our Sun - Space.com


Jan 22, 2016 ... The solar system is made up of the sun and everything that orbits around ... four inner planets, through the Asteroid Belt to the four gas giants and on to ... It is not alone — recent additions include Makemake, Haumea and Eris.

What is Saturn Made Of? - Space.com


Nov 14, 2012 ... Unlike the rocky terrestrial planets, gas giants such as Saturn lack the ... not have as much metallic hydrogen as the largest planet, Jupiter, but it ...

The Planets


Unlike the first four planets, Jupiter is made mostly of frozen gases. These gases ... Pluto is the only planet that has not been visited by any type of spacecraft.

The Inner Planets of Our Solar System - Universe Today


Dec 3, 2014 ... 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.

Surface of the Planets - Universe Today


Aug 9, 2009 ... ... on other planets in our Solar System, many people do not know the surface ... Venus' atmosphere of thick, toxic clouds hides the planet's surface from view. ... early astronomers believed were “man”-made and contained water. ... Jupiter is a gas giant, so it has no solid surface just a core of liquid metals.

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


Jan 7, 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 ...

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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 ...

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


Mercury has a very low-pressure atmosphere. Most of the reason for this is that small planets do not have a gravitational pull strong enough to hold lighter gases  ...

What is Jupiter Made Of? - Space.com


Nov 7, 2012 ... Jupiter is composed of gases — hydrogen and helium, mostly — all the ... is the largest planet in the solar system, the gas giant just doesn't have the ... had formed as part of the gas giant, it still would not have sufficient mass.