The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now."
Dirk Gently's Holistic Detective Agency is a humorous detective novel by English writer Douglas Adams, published in 1987. It is described by the author on its cover as a "thumping good detective-ghost-horror-who dunnit-time travel-romantic-musical-comedy-epic".
The Uplift Universe is a fictional universe created by American science fiction writer David Brin. A central feature in this universe is the process of biological uplift.
The Invaders is an American science-fiction television series created by Larry Cohen that aired on ABC for two seasons, from 1967 to 1968. Roy Thinnes stars as David Vincent, who after stumbling across evidence of an in-progress invasion of aliens from outer space—the aliens disguising themselves as humans and gradually infiltrating human institutions—tries to thwart the invasion despite the disbelief of officials and the general public, and the undermining of his efforts by the aliens. The series was a Quinn Martin production.
The zoo hypothesis speculates on the assumed behavior and existence of technologically advanced extraterrestrial life and the reasons they refrain from contacting Earth. It is one of many theoretical explanations for the Fermi paradox. The hypothesis states that extraterrestrial life intentionally avoids communication with Earth to allow for natural evolution and sociocultural development, and avoiding interplanetary contamination, similar to people observing animals at a zoo. The hypothesis seeks to explain the apparent absence of extraterrestrial life despite its generally accepted plausibility and hence the reasonable expectation of its existence. A variant on the zoo hypothesis suggested by the former MIT Haystack Observatory scientist John Allen Ball is the "laboratory" hypothesis, in which humanity is being subjected to experiments, with Earth serving as a giant laboratory.
The Ori are fictional characters in the science fiction television series Stargate SG-1. Within the storyline, there are fictional beings described as "ascended" because of their use of advanced technology and knowledge of the universe. The Ori are an example of such beings. A significant part of the storyline in the ninth season of Stargate SG-1 involves the Ori's attempt to trick humans into worshipping them as gods.
The Saga of Seven Suns is a series of seven space opera novels by American writer Kevin J. Anderson, published between 2002 and 2008. The books are set in a not-too-distant future where humans have colonized a number of other planets across the galaxy, thanks in part to technological assistance from an ancient alien race, the Ildirans. The series chronicles the universe-spanning war that erupts when humans inadvertently ignite the fury of a hidden empire of elemental aliens known as the hydrogues. Internal conflict is sparked within both the human and Ildiran empires as other ancient elemental races reappear to renew their own ancient war with the hydrogues.
An interstellar war is a hypothetical space war between combatants from different planetary systems. The concept provides a common plot device in science fiction, especially in the space opera subgenre. In contrast, the term intergalactic war refers to war between combatants from different galaxies, and interplanetary war refers to war between combatants from different planets of the same planetary system.
"To Serve Man" is a science fiction short story by American writer Damon Knight. It first appeared in the November 1950 issue of Galaxy Science Fiction and has been reprinted a number of times, including in Frontiers in Space (1955), Far Out (1961), and The Best of Damon Knight (1976).
Star-Lord is a superhero appearing in American comic books published by Marvel Comics. Created by Steve Englehart and Steve Gan, the character first appeared in Marvel Preview #4. The son of human Meredith Quill and Spartoi J'son, Peter Quill assumes the mantle of Star-Lord, an interplanetary policeman.
Pantropy is a hypothetical process of space habitation or space colonization in which, rather than terraforming other planets or building space habitats suitable for human habitation, humans are modified to be able to thrive in the existing environment. The term was coined by science fiction author James Blish, who wrote a series of short stories based on the idea.
Trapped is a science fiction novel written by the Canadian author James Alan Gardner and published in 2002 by HarperCollins Publishers under its various imprints. The book is the sixth installment in Gardner's "League of Peoples" series of novels, set in the mid-25th century. While the majority of the novels in the series take place in outer space, Trapped is set on "Old Earth", and does not feature the series' continuing character Festina Ramos.
Spider-Man and the Fantastic Four is a four-issue comic book limited series published by Marvel Comics. It was published in May - August 2007, written by Jeff Parker and illustrated by Mike Wieringo shortly before his death.
2081: A Hopeful View of the Human Future is a 1981 book by Princeton physicist Gerard K. O'Neill. The book is an attempt to predict the social and technological state of humanity 100 years in the future. O'Neill's positive attitude towards both technology and human potential distinguished this book from gloomy predictions of a Malthusian catastrophe by contemporary scientists. Paul R. Ehrlich wrote in 1968 in The Population Bomb, "in the 1970s and 1980s hundreds of millions of people will starve to death". The Club of Rome's 1972 Limits to Growth predicted a catastrophic end to the Industrial Revolution within 100 years from resource exhaustion and pollution.
Thorns is a science fiction novel by American author Robert Silverberg, published as a paperback original in 1967, and a Nebula and Hugo Awards nominee.
Ancient astronauts have been addressed frequently in science fiction and horror fiction. Occurrences in the genres include:
Stranger from Venus is a 1954 independently made UK second feature ('B') black-and-white science fiction film, directed by Burt Balaban and starring Patricia Neal, Helmut Dantine and Derek Bond. The screenplay was by Hans Jacoby from a story by Desmond Leslie. It was produced by Balaban and Gene Martel.
This Bruce Coville bibliography covers the over 100 books written by young adult fiction author Bruce Coville.
All Tomorrows: A Billion Year Chronicle of the Myriad Species and Mixed Fortunes of Man is a 2006 work of science fiction and speculative evolution written and illustrated by the Turkish artist C. M. Kosemen under the pen name Nemo Ramjet. It explores a hypothetical future path of human evolution set from the near future to a billion years from the present. Several future human species evolve through natural means and through genetic engineering, conducted by both humans themselves and by a mysterious and superior alien species called the Qu.
Greenworld is a 2010 speculative evolution and science fiction book written by Scottish geologist and paleontologist Dougal Dixon and primarily illustrated by Dixon himself, alongside a few images by other artists. Greenworld features a fictional alien planet of the same name and a diverse biosphere of alien organisms. Greenworld has so far only been published in Japan, where it was released in two volumes.
