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Extraterrestrial
Extraterrestrial refers to any object or being beyond ( extra-) the planet Earth ( terrestrial). It is derived from the Latin words ''extra'' ("outside", "outwards") and ''terrestris'' ("earthly", "of or relating to the Earth"). It may be abbreviated as "E.T." Extraterrestrial may also refer to: General topics * Extraterrestrial life, life that occurs outside of Earth and that probably did not originate from Earth ** Extraterrestrial intelligence, hypothetical intelligent extraterrestrial life ** Extraterrestrials in fiction ** List of alleged extraterrestrial beings Media and entertainment * ''Extraterrestrial'' (TV documentary), a program on the National Geographic Channel * "Extraterrestrial" (song), a 2018 song by Tynan and Kompany * "E.T." (song), a 2010 song by Katy Perry * ' Film * ''Extraterrestrial'' (2011 film), a 2011 Spanish film by Nacho Vigalondo * ''Extraterrestrial'' (2014 film), a 2014 American film by Colin Minihan and written by The Vicious Brothers * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Life
Extraterrestrial life, colloquially referred to as alien life, is life that may occur outside Earth and which did not originate on Earth. No extraterrestrial life has yet been conclusively detected, although efforts are underway. Such life might range from simple forms like prokaryotes to intelligent beings, possibly bringing forth civilizations that might be far more advanced than humankind. The Drake equation speculates about the existence of sapient life elsewhere in the universe. The science of extraterrestrial life is known as astrobiology. Speculation about the possibility of inhabited "worlds" outside the planet Earth dates back to antiquity. Multiple early Christian writers discussed the idea of a "plurality of worlds" as proposed by earlier thinkers such as Democritus; Augustine references Epicurus's idea of innumerable worlds "throughout the boundless immensity of space" (originally expressed in his Letter to Herodotus) in ''The City of God''. In his first century p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Intelligence
Extraterrestrial intelligence (often abbreviated ETI) refers to hypothetical intelligent extraterrestrial life. The question of whether other inhabited worlds might exist has been debated since ancient times. The modern form of the concept emerged when the Copernican Revolution demonstrated that the Earth was a planet revolving around the Sun, and other planets were, conversely, other worlds. The question of whether other inhabited planets or moons exist was a natural consequence of this new understanding. It has become one of the most speculative questions in science and is a central theme of science fiction and popular culture. Intelligence Intelligence is, along with the more precise concept of sapience, used to describe extraterrestrial life with similar cognitive abilities as humans. Another interchangeable term is '' sophoncy,'' first coined by Karen Anderson and published in the 1966 works by her husband Poul Anderson. Sentience, like consciousness, is a concept sometimes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrials In Fiction
An extraterrestrial or alien is any extraterrestrial lifeform; a lifeform that did not originate on Earth. The word ''extraterrestrial'' means "outside Earth". The first published use of ''extraterrestrial'' as a noun occurred in 1956, during the Golden Age of Science Fiction. Extraterrestrials are a common theme in modern science-fiction, and also appeared in much earlier works such as the second-century parody ''True History'' by Lucian of Samosata. Gary Westfahl writes: History Pre-modern Cosmic pluralism, the assumption that there are many inhabited worlds beyond the human sphere predates modernity and the development of the heliocentric model and is common in mythologies worldwide. The 2nd century writer of satires, Lucian, in his ''True History'' claims to have visited the moon when his ship was sent up by a fountain, which was peopled and at war with the people of the Sun over colonisation of the Morning Star. Other worlds are depicted in such early works as the 10t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial (2014 Film)
''Extraterrestrial'' (also known under the working title of ''The Visitors'') is a 2014 Canadian science fiction horror film that was directed by Colin Minihan—one half of the Vicious Brothers, who co-produced, wrote, and edited the film. It stars Brittany Allen, Freddie Stroma, and Melanie Papalia as a group of friends who must defend themselves against an alien onslaught. Plot A panicked woman runs to a shop wanting to use the phone. After being denied entry, she enters a nearby phone booth, and is taken by a flash of light. April and her boyfriend Kyle leave to spend the weekend at her parents' cabin. However Kyle has invited his friends Seth, Melanie, and Seth's girlfriend Lex. Along the way, Seth sets off fireworks in the car and they are pulled over by Sheriff Murphy, who gives them a warning. They make it to the cabin and begin drinking and smoking marijuana bought from April's nearby family friend, Travis. Kyle proposes to April, which she rejects, angering him. Later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Alleged Extraterrestrial Beings
This is a list of alleged extraterrestrial beings that have been reported in close encounters, claimed or speculated to be associated with "Unidentified flying objects" (UFOs) (not to be confused with the meaning of the term 'alien species' in the biological science of ecology). List See also * List of humanoid aliens * :Alleged UFO-related entities * Alien abduction * Alien abduction entities * MUFON (USA) and Kosmopoisk (Russia) * UFO contactees * Ancient astronauts * Conspiracy theory * List of conspiracy theories * New World Order * Extraterrestrial hypothesis * Cryptoterrestrial hypothesis * Interdimensional hypothesis * List of occult terms * Horizontal evolution * Genetic mutation * Chimera * Evolutionary biology In fiction * List of fictional extraterrestrials * Template:Fictional biology * :Lists of fictional alien species * Lists of fictional species * List of alien races in Marvel Comics * List of alien races in DC Comics * ''The Twilight Zone'' * ''Star Trek'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial (TV Documentary)
''Extraterrestrial'' (also ''Alien Worlds'' in the UK) is a British- American two-part television documentary miniseries, aired in 2005 in the UK by Channel 4, by the National Geographic Channel (as ''Extraterrestrial'') in the US on Monday, May 30, 2005 and produced by Big Wave Productions Ltd. The program focuses on the hypothetical and scientifically feasible evolution of alien life on extrasolar planets, providing model examples of two different fictional worlds, one in each of the series's two episodes. The documentary is based on speculative collaboration of a group of American and British scientists, who were collectively commissioned by National Geographic. For the purposes of the documentary, the team of scientists divides two hypothetical examples of realistic worlds on which extraterrestrial life could evolve: A tidally locked planet (dubbed "Aurelia") orbiting a red dwarf star and a large moon (dubbed "Blue Moon") orbiting a gas giant in a binary star system. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial (song)
"Extraterrestrial" is a song by American electronic music producer Tynan and Los Angeles-based dubstep producer Kompany. English record label Never Say Die released it on August 27, 2018. The song was released as part of Tynan's ''Pandora's Box'' extended play released on November 9, 2018. Background and release On August 27, 2018, the song was released as a digital download on international digital stores through English record label Never Say Die, as well as being released through various music streaming services. It was released as the first and only single on Tynan's third extended play ''Pandora's Box'', released through Never Say Die on November 9, 2018. As of June 3, 2019, the song has gained around 265,000 plays on SoundCloud and over 97,000 views on the UKF Dubstep YouTube channel. Critical reception "Extraterrestrial" was well received by most critics, with most complimenting the song's mix of dubstep and trap, sound design, and production Production may refer to: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Sky
In astronomy, an extraterrestrial sky is a view of outer space from the surface of an astronomical body other than Earth. The only extraterrestrial sky that has been directly observed and photographed by astronauts is that of the Moon. The skies of Venus, Mars and Titan have been observed by space probes designed to land on the surface and transmit images back to Earth. Characteristics of extraterrestrial sky appear to vary substantially due to a number of factors. An extraterrestrial atmosphere, if present, has a large bearing on visible characteristics. The atmosphere's density and chemical composition can contribute to differences in colour, opacity (including haze) and the presence of clouds. Astronomical objects may also be visible and can include natural satellites, rings, star systems and nebulas and other planetary system bodies. Luminosity and angular diameter of the Sun The Sun's apparent magnitude changes according to the inverse square law, therefore, the diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Vortex
An extraterrestrial vortex is a vortex that occurs on planets and natural satellites other than Earth that have sufficient atmospheres. Most observed extraterrestrial vortices have been seen in large cyclones, or anticyclones. However, occasional dust storms have been known to produce vortices on Mars and Titan. Various spacecraft missions have recorded evidence of past and present extraterrestrial vortices. The largest extraterrestrial vortices are found on the gas giants, Jupiter and Saturn, and the ice giants, Uranus and Neptune. Mercury Due to Mercury's thin atmosphere, it does not experience weather-like storms or other atmospheric weather phenomena such as clouds, winds, or rain. Rather unusually, Mercury has magnetic 'tornadoes' that were observed by NASA's Mercury MESSENGER during a flyby in 2008. The tornadoes are twisted bundles of magnetic fields that connect Mercury's magnetic field to Space. Venus Venus Express observed two large shape-shifting vortices on Venus' pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alien (other)
Alien primarily refers to: * Alien (law), a person in a country who is not a national of that country ** Enemy alien, the above in times of war * Extraterrestrial life, life which does not originate from Earth ** Specifically, intelligent extraterrestrial beings; see List of alleged extraterrestrial beings ** For fictional extraterrestrial life, see Extraterrestrials in fiction * Introduced species, a species not native to its environment Alien(s), or The Alien(s) may also refer to: Science and technology * AliEn (ALICE Environment), a grid framework * Alien (file converter), a Linux program * Alien Technology, a manufacturer of RFID technology Arts and entertainment * ''Alien'' (franchise), a media franchise ** Alien (creature in ''Alien'' franchise) Films * ''Alien'' (film), a 1979 film by Ridley Scott ** ''Aliens'' (film), second film in the franchise from 1986 by James Cameron ** ''Alien 3'', third film in the franchise from 1992 by David Fincher ** ''Alien Resurr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Materials
Extraterrestrial material refers to natural objects now on Earth that originated in outer space. Such materials include cosmic dust and meteorites, as well as samples brought to Earth by sample return missions from the Moon, asteroids and comets, as well as solar wind particles. Extraterrestrial materials are of value to science as they preserve the primitive composition of the gas and dust from which the Sun and the Solar System formed. Categories Extraterrestrial material for study on earth can be classified into a few broad categories, namely: # Meteorites too large to vaporize on atmospheric entry but small enough to leave fragments lying on the ground, among which are included likely specimens from the asteroid and Kuiper belts as well as from the moon and from Mars. # Moon rocks brought to Earth by robotic and crewed lunar missions. # Cosmic dust collected on Earth, in the Earth's stratosphere, and in low Earth orbit which likely include particles from the present day i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Diamonds
Although diamonds on Earth are rare, extraterrestrial diamonds (diamonds formed outside of Earth) are very common. Diamonds so tiny that they contain only about 2000 carbon atoms are abundant in meteorites and some of them formed in stars before the Solar System existed. High pressure experiments suggest large amounts of diamonds are formed from methane on the ice giant planets Uranus and Neptune, while some planets in other planetary systems may be almost pure diamond. Diamonds are also found in stars and may have been the first mineral ever to have formed. Meteorites In 1987, a team of scientists examined some primitive meteorites and found grains of diamond about 2.5 nanometers in diameter (nanodiamonds). Trapped in them were noble gases whose isotopic signature indicated they came from outside the Solar System. Analyses of additional primitive meteorites also found nanodiamonds. The record of their origins was preserved despite a long and violent history that started when they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
