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Welcome to the Encyclopedia of Science Fiction, Fourth Edition. Some sample entries appear below. Click here for the Introduction; here for the masthead; here for Acknowledgments; here for the FAQ; here for advice on citations. Find entries via the search box above (more details here) or browse the menu categories in the grey bar at the top of this page.

Site updated on 8 August 2022
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Gellis, Roberta L

(1927-2016) US author, author of many historical romances from 1964; her works of genre interest under her own name, either solo or in collaboration with Mercedes Lackey, have been romantic fantasies. She wrote two 1970s sf novels as by Max Daniels: The Space Guardian (1978) and Offworld (1979). A third sf venture under her own name is Overstars Mail: Imperial Challenge (2004), a Space Opera literally about crises in the mails as the Galactic Empire goes through a time of trouble. [JC]


An imagined extra planet of our own solar system, supposedly sharing Earth's orbit but always concealed from observation by its position on the far side of the Sun (that is, at or near the L3 Lagrange Point of the Earth-Sun system). The concept is ancient: Pythagoras proposed both the world, which he called Antichthon, and the mechanism of its concealment in the fifth century BCE. Although Counter-Earth – or Vulcan, as it is occasionally named – would not in fact remain hidden owing ...

Star Trek: Lower Decks

US animated tv series (2020-current). 219 Productions, CBS Eye Animation Productions, Important Science, Roddenberry Entertainment, Secret Hideout, Titmouse. Created by Mike McMahan, based on Star Trek created by Gene Roddenberry. Directed by Kim Arndt, Barry J Kelly, Bob Suarez and Jason Zurek. Writers include Mike McMahan. Voice cast includes Eugene Cordero, Dawnn Lewis, Jerry O'Connell, Jack Quaid, Tawny Newsome, Gillian Vigman and Noël Wells. Twenty 25-minute episodes. Colour. / ...

Dallas, Oswald

(1881-1951) UK author who sometimes signed himself as Captain Oswald Dallas, moderately active in British magazines from before World War One. In The Man Who Wasn't (1912), an invented "Q" ray is used to create artificial life, but the new being has the consciousness of an ancient Egyptian (see Reincarnation); The Treasures of Asshur (1925) and The Valley of Mystery (1929) are adventures, set respectively in Persia and Africa, involving Lost Races and occult powers in a routine fashion. [JC]

Blish, James

(1921-1975) US author whose early career in sf followed a pattern typical of the generation whose early careers coincided with World War Two. He became involved in sf Fandom during the 1930s, and was an early member of the well-known New York fan group the Futurians, where he became friendly with such writers as Damon Knight and C M Kornbluth. His first short story, "Emergency Refueling", was published in Super Science Stories for March 1940. He studied microbiology at Rutgers, graduating in ...

Nicholls, Peter

(1939-2018) Australian editor and author, primarily a critic and historian of sf through his creation and editing of The Encyclopedia of Science Fiction [see below]; resident in the UK 1970-1988, in Australia from 1988; worked as an academic in English literature (1962-1968, 1971-1977), scripted television documentaries, was a Harkness Fellow in Film-making (1968-1970) in the USA, worked as a publisher's editor (1982-1983), often broadcast film and book reviews on BBC Radio from 1974 and ...

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