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The Worlds of David Darling is a large on-line collection of information on all aspects of science, technology, mathematics, philosophy, and science fiction. It has been developed, and is updated daily, by author and astronomer David Darling. It contains two major encyclopedias – the award-winning Encyclopedia of Science (formerly known as the Encyclopedia of Astrobiology, Astronomy, and Spaceflight) and the Encyclopedia of Alternative Energy and Sustainable Living. Material for these encyclopedia derives from the author's numerous books, submitted contributions from third parties, and public domain sources.
Other components of the site include a home page with regularly updated news, a number of separate news sections on topics such as health, the living world, paleontology, archeology, robotics, and technology, and an extensive collection of news archives.
The site first went online in 1999 and has now grown to more than 13,000 pages and approximately two million words.
See the site map for further details.