This article is about the gas on Killaniri. You may be looking for the gas on Bespin. Rethen was a type of gas that was found within the atmosphere of the gas giant planets of Killaniri and Bespin. Bespin was composed of rethen in liquid and solid forms. SourcesEdit Galaxy Guide 2: Yavin and Bespin Planets of the Galaxy, Volume One The Last Command Sourcebook The Star Wars Planets Collection Galaxy Guide 2: Yavin and Bespin, Second Edition The Official Star Wars Fact File 5 (BES3, Bespin) Alien Anthology "Space beldon" on Wizards.com (backup link) Retrieved from "https://starwars.fandom.com/wiki/Rethen/Legends?oldid=8341680" Categories: Legends articlesGasesHidden category: Legends articles with canon counterparts Community content is available under CC-BY-SA unless otherwise noted.