Four Cells

Semi-interesting. Click Start and.. nothing happens! This is known as a Still Life or Stable pattern.

A Spaceship

Now. This is a spaceship - a pattern that returns to its initial state after a number of generations but in a different location. This particular spaceship is a type of glider, which is just a small spaceship.

A Proper Spaceship

This starts to show how complex the Life environment can be.