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Precursor or Precursors may refer to:
Legion may refer to:
Planets in science fiction are fictional planets that appear in various media of the science fiction genre as story-settings or depicted locations.
The idea of self-replicating spacecraft has been applied – in theory – to several distinct "tasks". The particular variant of this idea applied to the idea of space exploration is known as a von Neumann probe, after being conceived by mathematician John von Neumann. Other variants include the Berserker and an automated terraforming seeder ship.
The Covenant, or officially called the Covenant Empire, are a fictional theocratic hegemony of alien races who serve as the main antagonists in the first trilogy of the Halo video game series. They are composed of a diverse array of species united under the religious worship of the extinct Forerunners and their belief that the Forerunner ring worlds known as Halos will provide a path to salvation, known as the "Great Journey". After the high Covenant leadership—the three High Prophets—discover that the existence of the human species directly contradicts their ancient religion, they declare a genocidal campaign against humanity to preserve their own political power, knowing if they revealed this information to the rest of the Covenant it would mean the hegemony would fall into chaos. The High Prophets claimed the extermination of humanity is the "will of the gods and we [the Covenant] are their [the gods'] instrument." Over the next 27 years of war, the Covenant would repeatedly overpower the technologically inferior human race and its United Nations Space Command, devastating hundreds of human colonies throughout the Orion Arm, killing billions in their campaign. The Covenant are ultimately defeated during the final battle of the war set on the Ark, a Forerunner world, in Halo 3. With the Covenant destroyed, its former members create new factions with differing ideologies.
A troglodyte is a human cave dweller, from the Greek trogle "hole, mouse-hole" and dyein "go in, dive in".
Kane or KANE may refer to:
Proteus is an early Greek water god
Navi may refer to:
Avatar is a term used in Hinduism for a material manifestation of a deity. Other common uses include:
The Flood is a fictional parasitic alien lifeform and one of the primary antagonists in the Halo multimedia franchise. First introduced in the 2001 video game Halo: Combat Evolved, it returns in later entries in the series such as Halo 2, Halo 3, and Halo Wars. The Flood is driven by a desire to infect any sentient life of sufficient size; Flood-infected creatures, also called Flood, in turn can infect other hosts. The parasite is depicted as such a threat that the ancient Forerunners constructed artificial ringworld superweapons known as Halos to contain it and, as a last resort, to kill all sentient life in the galaxy in an effort to stop the Flood's spread by starving it.
Jäger, Jager, or Jaeger, meaning "hunter" in German, may refer to:
Subterranean fiction is a subgenre of adventure fiction, science fiction, or fantasy which focuses on fictional underground settings, sometimes at the center of the Earth or otherwise deep below the surface. The genre is based on, and has in turn influenced, the Hollow Earth theory. The earliest works in the genre were Enlightenment-era philosophical or allegorical works, in which the underground setting was often largely incidental. In the late 19th century, however, more pseudoscientific or proto-science-fictional motifs gained prevalence. Common themes have included a depiction of the underground world as more primitive than the surface, either culturally, technologically or biologically, or in some combination thereof. The former cases usually see the setting used as a venue for sword-and-sorcery fiction, while the latter often features cryptids or creatures extinct on the surface, such as dinosaurs or archaic humans. A less frequent theme has the underground world much more technologically advanced than the surface one, typically either as the refugium of a lost civilization, or as a secret base for space aliens.
This is a listing of uses of the Dyson sphere concept in popular fiction. Most fictional works depict the Dyson shell variant. Unless otherwise noted, that is the type of Dyson sphere in the instances below.
Dominator(s) may refer to:
Psion or Psions may refer to:
Forerunner may refer to:
Galaxies other than the Milky Way are popular settings for creators of science fiction, particularly those working with broad-scale space opera settings. Among the most common settings are the Andromeda Galaxy, the Magellanic Clouds, and the Triangulum Galaxy, all part of the Local Group close to the Milky Way, and in the cases of Andromeda and Triangulum the Local Group's two largest other galaxies. The difficulties involved in crossing the immense distances between galaxies are often overlooked in this type of science fiction.
The Halo video game and media franchise takes place in a fictional universe, where there are four major factions players encounter or control. Halo's story has 26th century humanity, led by the United Nations Space Command (UNSC), caught in a war with an alien coalition known as the Covenant. In the 2001 video game Halo: Combat Evolved, the UNSC ship Pillar of Autumn discovers a mysterious ringworld known as "Halo". The massive installation was built by an enigmatic race known as the Forerunners, who have long since disappeared; the Covenant worship the Forerunners as gods. During the course of the game, players discover that the Halos were built as a weapon of last resort against the Flood, an extragalactic parasite which is driven to consume all sentient life. The Forerunners were forced to activate the Halo network, killing themselves and any potential Flood hosts, in an effort to starve the Flood to death. The Covenant leadership discovered Humans could interact with Forerunner technology, and decide to destroy humanity in order to suppress this fact. The Flood, meanwhile, escape the confines of Halo and threaten to spread across the galaxy again.
Ancient astronauts have been addressed frequently in science fiction and horror fiction. Occurrences in the genres include: