The Solar System is a Solar System that is located within the Milky Way (not to be confused with the chocolate bar of the same name) that contains most of the stuff that we know about.  It is part of a bit of the Universe.  Its star is called the Sun; other big things in it are the Earth (and the other planets that orbit the Sun), some asteroids and dust and stuff.

The known planets within The Solar System are (in order of distance from the Sun) as follows:

- Mercury

- Venus

- (the Earth)

- Mars

- Jupiter

- Saturn

- Neptune

- Uranus

- Planet X

They're the main ones, anyway.  There's another sizeable-ish thing in between Uranus and Planet X, which was called Pluto but then some guys decided it wasn't really a planet after all so it doesn't count.  Apparently.