Atmospheres of the Solar System - Why do the planets in our solar system have such varied atmospheres? Earth's breathable mix of gases seems quite different from the crushing pressure of Venus's atmosphere or the thin, frigid air of Mars. What about the outer giants, Jupiter and Saturn, with their swirling clouds – are their atmospheres anything like our own? And as for the whispers of diamond rain on some planets, is there any truth to such exotic weather? | The Brain Maze