The third installment in our series on the shape of astronomical systems, this article explores galaxies and the universe beyond our solar system.
The second in a series of articles on visualising and modelling shapes in the history of astronomy.
This article explores ths history of theories about the shape of our planet. It is the first in a series of articles looking at the significance of geometric shapes in the history of astronomy.
This article looks at levels of geometric thinking and the types of activities required to develop this thinking.
