I know, but mining outposts do not destroy the asteroid.. I want to destroy them 

Well, I'd sure be. There I am, having spared no expenses to turn Alderan into a asteroid field, only for someone else to come along and turn the field into a dust cloud.

Also, while looking through the game-files, I found a "BuiltPlanetKiller" and a "UsedPlanetKiller" entry in the DiplomaticModifiers.xml. While definitely interesting, it is also quite disturbing considering Frogboy's stance regarding genocide runs.

I sometimes eschew transports entirely in favor of terror stars, just so the AI knows they suck at the game.

It helps when you build several hundred, however.

Don't forget the mining modules for whatever resource you built it over. After all, who wouldn't want to be visited by the Cultural Embassy and Mining Base of Stellar Destruction? We're just trying to provide employment opportunities for all those layabouts in alien systems while improving their culture.