funny that the headers on the linked website also use hexagons. What is it about Space themes and Hexagons? are they a very futuristic shape?
I've always taken hexagons in the context of eurogaming. At first, I figured many of them have hexagon tiles and/or grids going from Settlers Of Catan and Samurai. That turned out to NOT be quite the case. Instead, I have noticed that some games use hexagons for their VP chips. Puerto Rico and Race For The Galaxy to name a couple. In fact, for Race, all mention of VP are numbers printed inside hexagons.