After the initial designs, the idea of the planet being the actual graph changed into the planet being what the graph was based around. This was due to the space lecture and the example by http://www.5wgraphics.com/
This inspired me to concept a new idea with the meteors heading towards earth on a graph, the further away the meteor the older it is.
This concept made more of a visual impact than the first one as now the user can see the meteors travelling to earth instead of the impacts they left. It will also be easier to show travelling meteors on a timeline than providing individual information about each countries meteors. In the drawing, the plan was to overlay a countries flag onto the meteors of that country, but I decided to scrap this due to the problems with the smaller meteors.