EntityQ3709380· pop 10· linked from 13 articlesAlderson diskSign in to savehypothetical artificial astronomical megastructureConnectionsSunConceptastronomyEntityMarsEntitySolar SystemEntityJupiterEntitytechnologyEntitymassEntityInternational Standard Book NumberEntityscience fictionEntitymagicEntityTerry PratchettEntitytwilightEntityanthologyEntitymechanical stressEntityrole-playing gameEntityDyson sphereEntityterraformingEntityLarry NivenEntityKardashev scaleEntityTabby’s StarEntityCategoriesExploratory engineeringMegastructuresSpace habitats