|Claims||Intelligent extraterrestrial life visited the Earth in ancient times and affected human civilization.|
|Related scientific disciplines||Archaeology|
|Part of a series on the|
"Ancient astronauts" (or "ancient aliens") refers to a pseudoscientific hypothesis which holds that intelligent extraterrestrial beings visited Earth and made contact with humans in antiquity and prehistoric times. Proponents suggest that this contact influenced the development of modern cultures, technologies, religions, and human biology. A common position is that deities from most, if not all, religions are extraterrestrial in origin, and that advanced technologies brought to Earth by ancient astronauts were interpreted as evidence of divine status by early humans.
The idea that ancient astronauts existed and visited Earth is not taken seriously by academics and archaeologists, who consider it to be pseudoarchaeological and/or unscientific. It has received no credible attention in peer reviewed studies. When proponents of the idea present evidence in favor of their beliefs, it is often distorted or fabricated.
Well-known ancient astronauts proponents in the latter half of the 20th century who have written numerous books or appear regularly in mass media include Erich von Däniken, Zecharia Sitchin, Robert K. G. Temple, Giorgio A. Tsoukalos, David Hatcher Childress, Peter Kolosimo, and Mauro Biglino.
Proponents of the ancient astronaut hypothesis often maintain that humans are either descendants or creations of extraterrestrial intelligence (ETI) who landed on Earth thousands of years ago. An associated idea is that humans evolved independently, but that much of human knowledge, religion, and culture came from extraterrestrial visitors in ancient times, in that ancient astronauts acted as a "mother culture". Some ancient astronaut proponents also believe that travelers from outer space, referred to as "astronauts" (or "spacemen") built many of the structures on Earth (such as Egyptian pyramids and the Moai stone heads of Easter Island) or aided humans in building them.
Various terms are used to reference claims about ancient astronauts, such as ancient aliens, ancient ufonauts, ancient space pilots, paleocontact, astronaut- or alien gods, or paleo- or Bible-SETI (search for extraterrestrial intelligence).
Ancient astronauts hypothesis of creation
Proponents argue that the evidence for ancient astronauts comes from documentary gaps in historical and archaeological records, and they also maintain that absent or incomplete explanations of historical or archaeological data point to the existence of ancient astronauts. The evidence is argued to include archaeological artifacts that they deem anachronistic, or beyond the accepted technical capabilities of the historical cultures with which they are associated. These are sometimes referred to as "out-of-place artifacts"; and include artwork and legends which are interpreted in a modern sense as depicting extraterrestrial contact or technologies.
Scholars have responded that gaps in contemporary knowledge are not evidence of the existence of ancient astronauts, and that advocates have not provided any convincing documentary or physical evidence of an artifact that might conceivably be the product of ETI contact. According to astrophysicist Carl Sagan, "In the long litany of 'ancient astronaut' pop archaeology, the cases of apparent interest have perfectly reasonable alternative explanations, or have been misreported, or are simple prevarications, hoaxes and distortions".
Hypothesis origins and proponents
Paleocontact or "ancient astronaut" narratives first appeared in the early science fiction of the late 19th to early 20th century, including H.P. Lovecraft. The idea was proposed in earnest by Harold T. Wilkins in 1954; it received some consideration as a serious hypothesis during the 1960s mainly due to Erich von Däniken and the Space Race. Critics emerged throughout the 1970s, discrediting Von Däniken's claims. Ufologists separated the idea from the UFO controversy. By the early 1980s little remaining support could be found.
Shklovskii and Sagan
In Intelligent Life in the Universe (1966) astrophysicists Iosif Shklovsky [Shklovskii] and Carl Sagan devote a chapter to the argument that scientists and historians should seriously consider the possibility that extraterrestrial contact occurred during recorded history; however, Shklovskii and Sagan stressed that these ideas were speculative and unproven. Shklovskii and Sagan argued that sub-lightspeed interstellar travel by extraterrestrial life was a certainty when considering technologies that were established or feasible in the late 1960s; that repeated instances of extraterrestrial visitation to Earth were plausible; and that pre-scientific narratives can offer a potentially reliable means of describing contact with aliens.
Sagan illustrates this hypothesis by citing the 1786 expedition of French explorer Jean-François de Galaup, comte de La Pérouse, which made the earliest first contact between European and Tlingit cultures. The contact story was preserved as an oral tradition by the preliterate Tlingit. Over a century after its occurrence it was then recorded by anthropologist George T. Emmons. Although it is framed in a Tlingit cultural and spiritual paradigm, the story remained an accurate telling of the 1786 encounter. According to Sagan, this proved how
under certain circumstances, a brief contact with an alien civilization will be recorded in a re-constructible manner. He further states that the reconstruction will be greatly aided if 1) the account is committed to written record soon after the event; 2) a major change is effected in the contacted society; and 3) no attempt is made by the contacting civilization to disguise its exogenous nature.
Additionally, Shklovskii and Sagan cited tales of Oannes, a fishlike being attributed with teaching agriculture, mathematics, and the arts to early Sumerians, as deserving closer scrutiny as a possible instance of paleocontact due to its consistency and detail.
In his 1979 book Broca's Brain, Sagan suggested that he and Shklovskii might have inspired the wave of 1970s ancient astronaut books, expressing disapproval of "von Däniken and other uncritical writers" who seemingly built on these ideas not as guarded speculations but as "valid evidence of extraterrestrial contact." (However, this is arguable as several notable best selling works had made similar arguments before 1966, such as Peter Kolosimo's Timeless Earth (1964)) Sagan claimed that while many legends, artifacts, and purported out-of-place artifacts were cited in support of ancient astronaut hypotheses, "very few require more than passing mention" and could be easily explained with more conventional hypotheses. Sagan also reiterated his earlier conclusion that extraterrestrial visits to Earth were possible but unproven, and improbable.
Erich von Däniken
Erich von Däniken was a leading proponent of this hypothesis in the late 1960s and early 1970s, gaining a large audience through the 1968 publication of his best-selling book Chariots of the Gods? and its sequels.
According to von Däniken, certain artifacts require a more sophisticated technological ability in their construction than that which was available to the ancient cultures who constructed them. Von Däniken maintains that these artifacts were constructed either directly by extraterrestrial visitors or by humans who learned the necessary knowledge from said visitors. These include Stonehenge, Pumapunku, the Moai of Easter Island, the Great Pyramid of Giza, and the ancient Baghdad electric batteries.
Von Däniken writes that ancient art and iconography throughout the world illustrates air and space vehicles, non-human but intelligent creatures, ancient astronauts, and artifacts of an anachronistically advanced technology. Von Däniken also states that geographically separated historical cultures share artistic themes, which he argues imply a common origin. One such example is von Däniken's interpretation of the sarcophagus lid recovered from the tomb of the Classic-era Maya ruler of Palenque, Pacal the Great. Von Däniken writes that the design represented a seated astronaut. The iconography and accompanying Maya text, however, identifies it as a portrait of the ruler himself with the World Tree of Maya mythology.
The origins of many religions are interpreted by von Däniken as reactions to encounters with an alien race. According to his view, humans considered the technology of the aliens to be supernatural and the aliens themselves to be gods. Von Däniken states that the oral and written traditions of most religions contain references to alien visitors in the way of descriptions of stars and vehicular objects travelling through air and space. One such is Ezekiel's revelation in the Old Testament, which Däniken interprets as a detailed description of a landing spacecraft (The Spaceships of Ezekiel).
Critics argue that von Däniken misrepresented data, that many of his claims were unfounded, and that none of his core claims have been validated. In particular the Christian creationist community is highly critical of most of von Däniken's work. Young Earth creationist author Clifford A. Wilson published Crash Go the Chariots in 1972 in which he attempted to discredit all the claims made in Chariots of the Gods.
In Chariots of the Gods?, regarding the Nazca Lines, von Däniken states that "Seen from the air, the clear-cut impression that the 60 km [37-mile] long plain of Nazca made on me was that of an airfield." Considering he was in the process of finding evidence of ancient aliens, von Däniken exhibits confirmation bias, as he does not consider the Nazca Lines to be man-made until after the publication of Chariots of the Gods?. This etic perspective that he presents could be easily accepted by a reader familiar with air travel, and an undeveloped knowledge of the nature of the geoglyphs. Furthermore, since the majority of readers of Chariots of the Gods? are not educated in viewing artifacts from ancient civilizations, their interpretations are highly subject to von Däniken's opinions of the artifacts. Kenneth L. Feder argues a reader seeing the Nazca Lines for the first time in a book about aliens would be much more likely to associate those features with extraterrestrial origins, rather than from a civilization that existed on Earth.
In 1970, von Däniken admitted that the Nazca markings "could have been laid out on their gigantic scale by working from a model using a system of coordinates."
Zecharia Sitchin's series The Earth Chronicles, beginning with The 12th Planet, revolves around Sitchin's unique interpretation of ancient Sumerian and Middle Eastern texts, megalithic sites, and artifacts from around the world. He hypothesizes that the gods of old Mesopotamia were astronauts from the planet "Nibiru", which Sitchin states the Sumerians believed to be a remote "12th planet" (counting the Sun, Moon, and Pluto as planets) associated with the god Marduk. According to Sitchin, Nibiru continues to orbit our sun on a 3,600-year elongated orbit. Modern astronomy has found no evidence to support Sitchin's ideas.
Sitchin argues that there are Sumerian texts which tell the story that 50 Anunnaki, inhabitants of a planet named Nibiru, came to Earth approximately 400,000 years ago with the intent of mining raw materials, especially gold, for transport back to Nibiru. With their small numbers they soon grew tired of the task and set out to genetically engineer laborers to work the mines. After much trial and error they eventually created Homo sapiens sapiens: the "Adapa" (model man) or Adam of later mythology. Sitchin contended the Anunnaki were active in human affairs until their culture was destroyed by global catastrophes caused by the abrupt end of the last ice age some 12,000 years ago. Seeing that humans survived and all they had built was destroyed, the Anunnaki left Earth after giving humans the opportunity and means to govern themselves. Sitchin's work has not received mainstream scholarly support and has been roundly criticized by professionals that have reviewed his hypotheses. Semitic languages scholar Michael S. Heiser says that many of Sitchin's translations of Sumerian and Mesopotamian words are not consistent with Mesopotamian cuneiform bilingual dictionaries, produced by ancient Akkadian scribes.
Alan F. Alford, author of Gods of the New Millennium (1996), was an adherent of the ancient astronaut hypothesis. Much of his work draws on Sitchin's hypotheses. However, he now finds fault with Sitchin's hypothesis after deeper analysis, stating that: "I am now firmly of the opinion that these gods personified the falling sky; in other words, the descent of the gods was a poetic rendition of the cataclysm myth which stood at the heart of ancient Near Eastern religions."
Robert K. G. Temple's 1976 book, The Sirius Mystery, argues that the Dogon people of northwestern Mali preserved an account of extraterrestrial visitation from around 5,000 years ago. He quotes various lines of evidence, including advanced astronomical knowledge inherited by the tribe, descriptions, and comparative belief systems with ancient civilizations such as ancient Egypt and Sumer. His work draws heavily on the studies of cultural anthropologists Marcel Griaule and Germaine Dieterlen.
His conclusions have been criticized by scientists, who point out discrepancies within Temple's account, and suggested that the Dogon may have received some of their astronomical information recently, probably from European sources, and may have misrepresented Dogon ethnography.
Various new religious movements including some branches of theosophy, Scientology, Raëlism, Aetherius Society, and Heaven's Gate believe in ancient and present-day contact with extraterrestrial intelligence. Many of these faiths see both ancient scriptures and recent revelations as connected with the action of aliens from other planetary systems. Psychologists have found that UFO religions have similarities which suggest that members of these groups consciously or subliminally associate enchantment with the memes of science fiction.
Evidence cited by proponents
Among scientists, the consensus is that the ancient astronaut hypothesis is not impossible, but unjustified and unnecessary. The "mysteries" cited as evidence for the hypothesis can be explained without having to invoke ancient astronauts; proponents look for mysteries where none exist. Since ancient astronauts are unnecessary, Occam's razor should be applied and the hypothesis rejected according to the scientific consensus.
Ancient religious texts
Proponents cite ancient mythologies to support their viewpoints based on the idea that ancient creation myths of gods who descend from the heavens to Earth to create or instruct humanity are representations of alien visitors, whose superior technology accounts for their perception as gods. Proponents draw an analogy to occurrences in modern time when isolated cultures are exposed to Western technology, such as when, in the early 20th century, "cargo cults" were discovered in the South Pacific: cultures who believed various Western ships and their cargo to be sent from the gods as fulfillment of prophecies concerning their return.[user-generated source?]
The ancient Sumerian myth of Enûma Eliš, inscribed on cuneiform tablets and part of the Library of Ashurbanipal, says humankind was created to serve gods called the "Annunaki". Hypothesis proponents believe that the Annunaki were aliens who came to earth to mine gold for their own uses. According to the Enuma Elish story, the Annunaki realized mining gold was taking a toll on their race, and then created the human race as slaves.
In Hindu mythology, the gods and their avatars travel from place to place in flying vehicles called Vimana. There are many mentions of these flying objects in the Ramayana, which used by the Lankan king Ravana from Sri Lanka dates to the 5th or 4th century BCE. Below are some examples:
From Book 6, Canto CXXIII: The Magic Car:
Is not the wondrous chariot mine,
Named Pushpak, wrought by hands divine.
This chariot, kept with utmost care,
Will waft thee through the fields of air,
And thou shalt light unwearied down
In fair Ayodhyá's royal town.
From Book 6, Canto CXXIV: The Departure:
Swift through the air, as Ráma chose,
The wondrous car from earth arose.
And decked with swans and silver wings
Bore through the clouds its freight of kings.
Erich von Däniken discusses the Ramayana and the vimanas in Chapter 6 of Chariots of the Gods? suggesting that they were "space vehicles". To support his hypothesis, he offers a quotation which he says is from an 1889 translation of the Mahabharata by C. Roy: "Bhima flew with his Vimana on an enormous ray which was as brilliant as the sun and made a noise like the thunder of a storm".
Book of Genesis and Book of Enoch
The Book of Genesis, Chapter 6 verses 1-2 and 4, states:
When human beings began to increase in number on the earth and daughters were born to them, the sons of God saw that the daughters of humans were beautiful, and they married any of them they chose.
The Nephilim were on the earth in those days—and also afterward—when the sons of God went to the daughters of humans and had children by them.
— Genesis 6:1–4 (New International Version)
Many Christians consider these groups to be the different families of Adam and Eve's children. Another interpretation is that the Nephilim are the children of the "sons of God" and "daughters of humans", although scholars are uncertain. The King James Version translates "Nephilim" as "giants" (or Gibborim). Ancient Astronaut proponents argue that Adam and Eve ate of the forbidden fruit in order "to be godlike", and this was the first step in human evolution.
The first part of the apocryphal Book of Enoch expands and interprets Genesis 6:1: that the "sons of God" were a group of 200 "angels" called "Watchers", who descended to Earth to breed with humans. Their offspring are the Nephilim, "giants" who "consumed all the acquisitions of men". When humans could no longer sustain the Nephilim, they turned against humanity. The Watchers also instructed humans in metallurgy and metalworking, cosmetics, sorcery, astrology, astronomy, and meteorology. God then ordered the Watchers to be imprisoned in the ground, and created the Great Flood (or the numerous Deluge myths) to rid Earth of the Nephilim and of the humans given knowledge by the Watchers. To ensure humanity's survival, Noah is forewarned of the oncoming destruction. Because they disobeyed God, the book describes the Watchers as "fallen angels".[original research?]
Some ancient astronaut proponents argue that this story is a historical account of extraterrestrials visiting Earth, called Watchers because their mission was to observe humanity. Some of the extraterrestrials disobeyed orders; they made contact with humans, cross-bred with human females, and shared knowledge with them. The Nephilim were thus half-human-half-extraterrestrial hybrids.[better source needed]
Chuck Missler and Mark Eastman argue that modern UFOs carry the fallen angels, or offspring of fallen angels, and that "Noah's genealogy was not tarnished by the intrusion of fallen angels. It seems that this adulteration of the human gene pool was a major problem on the planet earth".
Marc Dem reinterprets the Book of Genesis by writing that humanity started on another planet and that the God of the Bible is an extraterrestrial.
Book of Ezekiel
In the Old Testament, Chapter 1 of the Book of Ezekiel recounts a vision in which Ezekiel sees "an immense cloud" that contains fire and emits lightning and "brilliant light". It continues: "The center of the fire looked like glowing metal, and in the fire was what looked like four living creatures". These creatures, called cherubim, are described as winged and humanoid, they "sped back and forth like flashes of lightning" and "fire moved back and forth among the creatures". The passage goes on to describe four shiny objects, called ophanim, each appearing "like a wheel intersecting a wheel". These objects could fly and they moved with the creatures: "When the living creatures moved, the wheels beside them moved; and when the living creatures rose from the ground, the wheels also rose".[original research?]
In Chapter 4 of Chariots of the Gods?, entitled "Was God an Astronaut?", von Däniken suggests that Ezekiel had seen a spaceship or spaceships; this hypothesis had been put forward by Morris Jessup in 1956 and by Arthur W. Orton in 1961. A detailed version of this hypothesis was described by Josef F. Blumrich in his book The Spaceships of Ezekiel (1974).
Elsewhere in the Bible
Robert Dione and Paul Misraki published books in the 1960s describing the events in the Bible as caused by alien technology. Barry Downing, a Presbyterian minister, wrote a book in 1968 arguing that Jesus was an extraterrestrial, citing John 8:23 and other biblical verses as evidence.
Some ancient astronaut proponents such as Von Däniken and Barry Downing believe that the concept of hell in the Bible could be a real description of the planet Venus brought to Earth by extraterrestrials showing photos of the hot surface on Venus to humans. Proponents of the hypothesis state that 'God' and 'Satan' were aliens that disagreed on whether or not human beings should be allowed the information that is offered by the tree of knowledge. David Childress, a leading proponent of ancient astronaut creation hypothesis, compares this story to the Greek tale of Prometheus, who gave mankind the knowledge of fire. Ancient Astronaut proponents believe the biblical concept of Satan is based on a misunderstood visit by extraterrestrials. Erich von Däniken posited that the descendants of extraterrestrials had children with hominids, and this was referred to in the Bible as the "Original sin." Von Däniken believes that the biblical great flood was punishment after an extraterrestrial 'God' discovered that earthbound, fallen angels were mating with ape-like early humans.
Irish Book of Invasions
Childress and others have written that the passage in the Book of Invasions describing the arrival of the Tuatha Dé Danann in Ireland, records "the arrival of aliens in spacecraft with cloaking devices" at Slieve Anierin. The text states “so that they were the Tuatha De Danand who came to Ireland. In this wise they came, in dark clouds. They landed on the mountains of Conmaicne Rein in Connacht and they brought a darkness over the sun for three days and three nights".
Worldwide petroglyphic evidence
Ancient astronaut proponents believe Hopi cave drawings of Kachinas (spirit beings) found in the desert link the origins of the Hopi and Zuni tribes with "star people". They point to similar etchings elsewhere as evidence that extraterrestrials visited many different ancient civilizations.
Other artistic support for the ancient astronaut hypothesis has been sought in Palaeolithic cave paintings. Wondjina in Australia and in the Rock Drawings in Valcamonica, in Italy (seen above) are said to bear a resemblance to present day astronauts. Supporters of the ancient astronaut hypothesis sometimes argue that similarities such as dome shaped heads, interpreted as beings wearing space helmets, prove that early man was visited by an extraterrestrial race.
Medieval and renaissance art
Some examples of these said objects include an ovoid shape in the sky of the painting Madonna con Bambino e San Giovannino (Madonna and Child with the Infant Saint John), an unidentified flying object in the Annunciazione (Annunciation) (1486) by Carlo Crivelli, a “spherical object with antennae” that appears similar to Sputnik in Bonaventura Salimbeni’s Santissima Trinita (Holy Trinity) (1595), and many such unidentified flying objects in Masolino Da Panicale’s Miracolo della neve (Miracle of the Snow) (1428). According to Italian art expert Diego Cuoghi, these objects contain religious symbolism behind them as most paintings of the time were of religious subjects. In such artworks, he says that angels and “radiant clouds” often appear in the sky. He says the object in the Madonna and Child is one of these radiant clouds, the object in the Annunciazione is a vortex of angels, the Sputnik-like object of Santissima Trinita is a globe representing creation with two sceptres held by God and Christ, and the Miracolo della neve contains many lenticular clouds.
The ancient Nazca Lines are hundreds of huge ground drawings etched into the high desert of southern Peru. Some are stylized animals and humanoid figures, while others are merely straight lines hundreds of meters long. As the figures were made to be seen from a great height, they have been linked with the ancient astronaut hypothesis. In the 1970s, the pseudohistorical writer Erich von Däniken popularized a notion that the Nazca lines and figures could have been made "according to instructions from aircraft" and that the longer and wider lines might be runways for spacecraft. According to archaeologist Kenneth Feder, Von Däniken's extraterrestrial interpretation is not supported by any evidence. Feder wrote that "the lines are interpreted by archaeologists as ceremonial pathways of the ancient Nazca people; they were used precisely in this way in the fairly recent past."
Ancient flying machines
Proponents of the ancient astronauts idea say some artifacts discovered in Egypt (the Saqqara Bird) and Colombia-Ecuador (Quimbaya artifacts) are similar to modern planes and gliders. These artifacts have been interpreted by mainstream archaeologists, however, as stylized representations of birds and insects.
Ancient structures and megalithic sites
Proposed evidence for ancient astronauts includes the existence of ancient monuments and megalithic ruins such as the Giza pyramids of Egypt, Machu Picchu in Peru, or Baalbek in Lebanon, the Moai of Easter Island and Stonehenge of England. Supporters say that these stone structures could not have been built with the technical abilities and tools of the people of the time and further argue that many could not be duplicated even today. They suggest that the large size of the building stones, the precision with which they were laid, and the distances many were transported leaves the question open as to who constructed these sites.
These ideas are categorically rejected by mainstream archeology. Some mainstream archeologists have participated in experiments to move large megaliths. These experiments have succeeded in moving megaliths up to at least 40 tons, and part have speculated that with a larger workforce larger megaliths could be towed with the use of known ancient technology.
Pyramids of Egypt
Von Däniken states that ancient Egypt, with its great structures of the Giza pyramid complex such as the Great Pyramid of Giza and the Great Sphinx of Giza, became a "fantastic, ready-made civilization" suddenly and without transitions and development. Ancient astronaut proponents suggest that sites like the pyramids of Giza were instead constructed by extraterrestrials. However, archaeological evidence demonstrates not only the long cultural trajectory of prehistoric Egypt but also the developmental processes the ancient Egyptians underwent. Egyptian tombs began with important leaders of villages being buried in the bedrock and covered with mounds of earth. Eventually, the first pharaohs had tombs covered with single-story, mud-brick, square structures called mastabas. The stepped pyramid developed out of multiple mastabas being stacked on each on in one structure. This led to the construction of pharaoh Djoser's Step Pyramid at Saqqara, which is known from records to have been built by the ancient Egyptian architect and advisor Imhotep. It was pharaoh Sneferu who had his pyramid transitioned from a stepped to a true pyramid like the well-known pyramids of Giza. A papyrus document like a logbook kept by an official called inspector Merer has also been discovered with records of the construction of the Great Pyramid.
The Moai statues of Easter Island were moved miles from the Rano Raraku quarry to their current locations, and archaeologists have wondered how massive statues such as these could have been transported. The folklore of the native Rapa Nui people says that chiefs and priests used mana to make the statues of the island walk.  In 1982, Czech engineer Pavel Pavel and a group of sixteen people used a replica concrete moai to test a method that could have transported the statues. They tied ropes to it and in two groups pulled and twisted it back and forth, making it move forward in a walking motion. They called it the "refrigerator method" and demonstrated that the massive statues could be easily moved by a small group of people.
Religious and cultural practices
A number of ancient cultures, such as the ancient Egyptians and some Native Americans, artificially lengthened the skulls of their children. Some ancient astronaut proponents propose that this was done to emulate extraterrestrial visitors, whom they saw as gods.
Among the ancient rulers depicted with elongated skulls are pharaoh Akhenaten and Nefertiti. The depiction of Akhenaten and his family with traits like elongated skulls, limbs, underdeveloped torsos, and gynaecomastia in Amarna art is hypothesized to be the effect of a familial disease. Marriage between family members, especially siblings, was common in ancient Egyptian royal families, elevating the risk of such disorders. Studies on the remains of the ruling family of 18th Dynasty Egypt have found evidence of deformities and illnesses. Proposed syndromes of Akhenaten include Loeys-Dietz syndrome, Marfan's syndrome, Frohlich syndrome, and Antley-Bixler syndrome. Akhenaten worshipped the sun disk god Aten and it is suggested that such worship could point to a disease that is alleviated by sunlight.
In popular culture
Ancient astronauts have been addressed frequently in science fiction and horror fiction in many different media. In a 2004 article in Skeptic magazine, Jason Colavito writes that von Däniken borrowed many of the book's concepts from Le Matin des Magiciens (Morning of the Magicians), that this book in turn was heavily influenced by the Cthulhu Mythos, and that the core of the ancient astronaut hypothesis originates in H. P. Lovecraft's works "The Call of Cthulhu" and At the Mountains of Madness. Colavito later expanded on this idea in his book The Cult of Alien Gods: H. P. Lovecraft and Extraterrestrial Pop Culture.
The idea that aliens visited Earth in the past is frequently seen in works of fiction. For example, the comic book Thor considers that all the Norse mythology is based on actual beings living in other dimensions, who were worshipped as gods by the Vikings and who reappear on Earth in modern times. Däniken's work, however, inspired several works and franchises over time, such as Eternals, Stargate, Indiana Jones and the Kingdom of the Crystal Skull, Prometheus and The X-Files. All those works do not take the idea seriously, but merely use it as a narrative device. Another angle may be to leave the aliens out of the story, and focus instead on devices they left behind, as in the novels Scarlet Dream, Galactic Derelict, World of Ptavvs, Toolmaker Koan, and A Fire Upon the Deep. Aliens may also appear as an elder race that created or shepherded humans in their early times; and may or may not be present in the work's present day.
Ancient Aliens is a television series that features proponents of the ancient astronaut hypothesis, such as Giorgio A. Tsoukalos, David Childress, Erich von Däniken, Steven M. Greer, and Nick Pope.[failed verification]
Many publications have argued for the ancient astronauts hypotheses. Notable examples include these:
- 1919: Charles Fort (book, The Book of the Damned)
- 1953: Desmond Leslie (book, Flying Saucers Have Landed)
- 1954: Harold T. Wilkins (book, Flying Saucers from the Moon)
- 1956: Morris K. Jessup (book, UFO and the Bible)
- 1957: Peter Kolosimo (book, Il pianeta sconosciuto - The Unknown Planet)
- 1958: George Hunt Williamson (book, Secret Places of the Lion)
- 1958: Henri Lhote (book, The Search for the Tassili Frescoes: The story of the prehistoric rock-paintings of the Sahara)
- 1960: Jacques Bergier and Louis Pauwels (book, Le Matin des magiciens (The Morning of the Magicians))
- 1960: Brinsley Le Poer Trench (book, The Sky People)
- 1961: Matest M. Agrest (article, The Astronauts of Yore)
- 1963: Robert Charroux (book, Histoire inconnue des hommes depuis 100.000 ans - One Hundred Thousand Years of Man's Unknown History)
- 1964: Peter Kolosimo (book, Terra senza tempo - Timeless Earth)
- 1964: W. Raymond Drake (book, Gods or Spacemen?)
- 1964: Robert Charroux (book, Legacy of the Gods)
- 1965: Paul Misraki (book, Flying Saucers Through The Ages)
- 1965: Robert Charroux (book, The Gods Unknown)
- 1967: Brad Steiger (book, The Flying Saucer Menace)
- 1967: John Michell (book, The Flying Saucer Vision)
- 1968: Erich von Däniken (book, Erinnerungen an die Zukunft: Ungelöste Rätsel der Vergangenheit, translated as Chariots of the Gods?)
- 1968: Barry Downing (book, The Bible and Flying Saucers)
- 1969: Robert Dione (book, God Drives a Flying Saucer)
- 1969: Jean Sendy (book, Those Gods Who Made Heaven and Earth; the novel of the Bible)
- 1969: Jacques Vallee (book, Passport to Magonia: From Folklore to Flying Saucers)
- 1970: John Keel (book, Operation Trojan Horse)
- 1972: T. C. Lethbridge (book, The Legend of the Sons of God: A Fantasy?)
- 1973: In Search of Ancient Astronauts (TV special)
- 1974: Charles Berlitz (book, The Bermuda Triangle)
- 1974: Josef F. Blumrich (book, Da tat sich der Himmel auf (The Spaceships of Ezekiel)
- 1974: Claude Vorilhon aka Rael (book, Le Livre Qui Dit La Vérité - The Book Which Tells the Truth)
- 1974: Robin Collyns (book, Did Spacemen Colonise the Earth?)
- 1975: Graham Cairns-Smith (a biochemist who suggested that the ancestors of humans might have had alien biochemistries and presented evidence to support this possibility in a biological research journal)
- 1975: Serge Hutin (book, Alien Races and Fantastic Civilizations)
- 1976: Robert K. G. Temple (book, The Sirius Mystery)
- 1976: John Baxter, Thomas Atkins (book, The Fire Came By: The Riddle of the Great Siberian Explosion)
- 1977: John Philip Cohane (book, Paradox: The Case for the Extraterrestrial Origin of Man)
- 1977: Warren Smith (book, UFO Trek)
- 1978: George Sassoon and Rodney Dale (book, Manna Machine)
- 1978: Zecharia Sitchin (book, The 12th planet)
- 1984: Salvador Freixedo, (book, ¡Defendámonos de los Dioses! — Spanish: Let Us Defend Ourselves from the Gods!)
- 1988: Salvador Freixedo, (book, La Granja Humana — Spanish: The Human Farm)
- 1988: Riley Martin (book, The Coming of Tan)
- 1989: Salvador Freixedo, (book, La Amenaza Extraterrestre — Spanish: The Alien Threat).
- 1993: David Icke (book, And the truth shall set you free)
- 1996: Alan F. Alford (book, Gods of the New Millennium)
- 1996: Murry Hope (book, The Sirius Connection: Unlocking the Secrets of Ancient Egypt)
- 1996: Richard C. Hoagland (book, The Monuments of Mars: A City on the Edge of Forever)
- 1998: Lloyd Pye (book, Everything You Know is Wrong — Book One: Human Evolution)
- 1998: James Herbert Brennan (book, Martian Genesis)
- 1999: David Hatcher Childress (book, Technology of the Gods, The Incredible Science of the Ancients)
- 1999: Laurence Gardner (book, Genesis of the Grail Kings: The Explosive Story of Genetic Cloning)
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