Stargazers will be treated to a dazzling six-planet "alignment" this January.
the descriptions of the Solar System had to get very complex in order to keep the Earth at the centre. Nicolas Copernicus (1473-1543) is generally credited with changing the model of the Solar ...
DALLASI absolutely love this, it's called an orrery, and it's a little mechanical model of our solar system. You can see the planets here, orbiting the sun as they would do in real life.