Genre - World Building
Sub-genre - Science Fiction World Building
Description - Miscellaneous elements of usually future world that is about the world or things in the world. This genre should not be used on a story located in the Fiction category. It is meant for fragments and miscellaneous extra material located in the World Building category.
Common Tropes - Histories, timelines, snippets, planets, star systems, star ships
Published Examples - Ships of Science Fiction
Stories on Gay Authors - https://gayauthors.org/stories/browse/subgenre/science-fiction-world-building/