Planets....

I came across an interesting article this week that explores my topic well and there is a post that I really enjoyed.
It deals with star wars which as yall know is a favorite of mine. It talks about how all the planets in the movie are not only "simple" by nature but they all have different weather climates. For instance there is a Forrest planet, an ice planet, a desert planet etc... Also the simple comes in for all the planets supporting all different life forms because apparently they all breath oxygen. The fact is that unless they were all like earth with the atmospheric structure etc it would not support all life without compensation for breathing. Another is the climate it is pretty weird that each planet is different in climate. It the previous is true that the atmosphere is similar to earths, we all know that different climate regions occur so it is hard to make the leap that each planet (or moon) would be only one climate as far as forrest or ice or desert. Just some thoughts on an interesting post I read.