Board Thread:New on SporeWiki/@comment-1309126-20150816180546/@comment-1073312-20150820121523

See Rocheworld, it maybe practical for even some kind of aircraft to travel one to the other. The Roche limit is small because the mass of the two bodies is the same, though its unstable to our Civ planets unless it turns out they are ancient alien constructions or a very unlikely chance with just enough time for civilisation to spring.