Translate

Showing posts with label Kepler-68b. Show all posts
Showing posts with label Kepler-68b. Show all posts

Wednesday, February 13, 2013

Kepler-68b, a new type of planet


There are three types of planets in our solar system. On the one hand we have rocky worlds like Earth and Mars have a solid surface on which to put your feet and consist of 'rocks' (silicates and metals). Then there are gas giants like Jupiter and Saturn, composed mainly of hydrogen and helium (and actually should be called "Giant fluid" because most of its interior hydrogen is a liquid or metallic). Finally we have the ice giants,