Copernicus and Galileo explain their discovery of how the Earth moved around the Sun.
The different effects of gravity on Earth compared to Jupiter or Pluto.
The sizes of the Sun and Earth are illustrated through colourful paintings on a screen.
The evidence for the Earth being round or spherical using Aristotle's reasoning.
A look at the evidence for the Earth being round or spherical.
An explanation of why the sun can be so hot and yet not burn us here on Earth.