A is for aft. As in the "Aft Nacelle". WTF? B is for Ben Childress of the Rigel XII mining settlement. C is for Ceti Alpha V. D is for Deneva, first colonized by humans in the mid-22nd century. E is for Ekos. Home of the Space Nazis. F is for Ferengi females. Until the mid-2370s they were required under law to be naked in the presence of males. G is for Gravity Boots. A key piece of evidence not disavowed by Crewman Dax. H is for Hydrogen, one of the most common elements in the known universe and encountered everywhere space explorers of any species ventured.