A is for the Arsenal of Freedom. B is for Babel. C is for Conundrum. D is for the Deltans. E is for (The) Enterprise Incident (thought I saw a theme developing) F is for Fermat's Last Theorem, studied by Captain Jean-Luc Picard in 2365. G is for Galaxy-class starships. For all of the years and effort spent on their development. Several of them didn't last very long.