Group 5 The Gas Giant Planets
Gas Giant Planets are planets that don't consist of rock or a solid material. There are four gas planets in our system; Jupiter, Saturn, Uranus and Neptune.
Saturn and Jupiter are mostly made out of helium and hydrogen (with heavier masses making up three and thirteen percent of the mass).
Here are the four gas planets in our sloar system (to scale).
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page revision: 4, last edited: 28 Jun 2012 11:10