Science-Fiction realms -- WEBLINKS

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worlds invented by science-fiction

http://www.cracked.com/blog/the-5-most-ingenious-worlds-ever-invented-by-science-fiction/

http://www.bustle.com/articles/147719-5-crazy-creative-science-fiction-worlds-in-books

https://en.wikipedia.org/wiki/Category:Fictional_planets

https://en.wikipedia.org/wiki/Category:Fictional_regions_of_space

https://en.wikipedia.org/wiki/Core_worlds

https://en.wikipedia.org/wiki/Galactic_Federation

https://en.wikipedia.org/wiki/List_of_galactic_communities

https://en.wikipedia.org/wiki/List_of_science_fiction_universes

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Kardashev scale http://en.wikipedia.org/wiki/Kardashev_scale#Extensions_to_the_original_scale_in_science-fiction

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