If you’ve seen illustrations or models of the solar system, maybe you noticed that all the planets orbit the Sun in more or less the same plane, traveling in the same direction.But what is above and below that plane? And why are the planets’ orbits aligned like this, in a flat pan-cake, rather than each If you’ve seen illustrations or models of the solar system, maybe you noticed that all the planets orbit the Sun in more or less the same plane, traveling in the same direction. But what is above and below that plane? And why are the planets’ orbits ... [4023 chars]