Astronomy & Space
393 sites
https://daviddarling.info/encyclopedia/A/40_Eridani.html
David Darling's encyclopedia entry on 40 Eridani covers the nearby trinary star system in Eridanus, including its white dwarf, red dwarf, and orange main-sequence components, with detailed discussion of habitability and its famous role as Vulcan's star in Star Trek. Part of a broader astronomy encyclopedia, this page blends rigorous stellar data with engaging science fiction connections, complete with NASA imagery and comparisons to our own solar system's habitable zone.
http://burtleburtle.net/bob/scifi/dyson.html
Bob's detailed technical exploration of Dyson swarms and torus-shaped satellite constellations covers the mathematics and orbital mechanics behind capturing a star's energy output. The page features interactive JavaScript simulations letting visitors visualize these megastructure concepts from within the swarm itself, alongside references to real-world applications like SpaceX's Starlink constellation.
https://sagan.diletante.net/
A fanlisting dedicated to the beloved astronomer and science communicator Carl Sagan, gathering fans from around the world who admire his work and legacy. Built and maintained by a fan known as C.:., the site includes information about Sagan, membership listings, and links to related resources.