Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history, including a biblical patriarch, a race of fish-people and Egypt's most controversial Pharoah.
Giorgio Tsoukalos takes a look back at the top 10 reports of encounters with strange and mysterious beasts that have been investigated on "Ancient Aliens."
Counting down the top 10 locations around the world that may be hiding alien bases, including a cavern beneath the ice of Antarctica, a lake in China that is a hotspot for UFOs, and a pyramid under the slopes of Mount Denali.
Counting down the top 10 scariest encounters that just might be evidence of extraterrestrial visitation, from an encounter in rural Texas that left onlookers with unexplainable injuries, to mysterious cattle mutilations, and more.
Counting down 10 intriguing symbols and codes found across the globe that might contain proof of otherworldly contact; from glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an unexplained origin.
Counting down the top 10 devastating disasters that might have an otherworldly connection; from a flying monster at a nuclear incident, a meteor that wiped out the dinosaurs, and a deadly virus that might be from another world.
More than 7,000 years ago, the ancient Sumerians established what is considered the world's first civilization; but it may be possible that these powerful beings were, in fact, extraterrestrial visitors.
For thousands of years, Scotland has been an epicenter of otherworldly phenomena; it is home to mysterious ancient stone circles, stories of strange beings, and is a major hotspot for UFO sightings.
Throughout the world there are mysterious ancient stones shaped into perfect spheres; many of them show clear evidence of being manmade and some completely defy explanation; the mystery of the stone spheres could provide clues about humankind's past.
Considered by many to be the greatest civilization in the history of the Americas, the Maya thrived for more than 2,000 years; today new evidence is being discovered that completely upends our understanding of this ancient culture.
For thousands of years, cultures around the world have held a belief in stargates through which beings have traveled to Earth from distant points in the universe and even other dimensions.
For decades, incredible claims have been made about an extraterrestrial presence on Earth, and the government has gone to great lengths to discredit them.
For thousands of years, humankind has attempted to make contact with beings from beyond Earth; now, the search for extraterrestrial intelligence is ramping up, with new technologies allowing individuals to explore the universe.
Stories of god-like beings providing instruction to early humans, helping establish the first civilizations; exploring if mysterious figures who appear throughout history provide evidence that these otherworldly teachers have been here all along.
On Jacques Vallee's work in the field of UFOs and his theories on alien life.
Deep beneath the sands of Egypt lie 24 enormous sarcophagi, and every one of them is empty; discussing what purpose those giant tombs had served.
For more than four decades, award-winning journalist Linda Moulton Howe has covered the most mysterious phenomena on Earth.
From biblical patriarchs to modern day alien abductees, throughout history, there have been people who claimed to have contact with otherworldly beings; often bearing important messages for humanity.
Puma Punku in Bolivia features stone blocks, each carved with precision; the blocks lie scattered across the landscape, confusing archaeologists as to what the ancient site might have been.
More than 10,000 crop circle formations have been documented in over 50 countries.
The discovery of the ancient megalithic site of Karahan Tepe in southern Turkey turns the world of archaeology on its head, displaying engineering skills far beyond what the people of the time were thought to be capable of.
The towering obelisks of ancient Egypt weigh hundreds of tons; while mainstream scholars identify them as monuments to the pharaohs, ancient astronaut theorists suggest they may have served a technological purpose.
The Mutual UFO Network is an organization devoted to the scientific investigation of unidentified aerial phenomena and other unexplained encounters; with more than five decades of investigations, MUFON's extensive database could contain proof.
Meteor impacts have altered the world, creating the environment for the rise of humankind and delivering metals essential to an advanced civilization; evidence could reveal that celestial objects have been directed to Earth by alien intelligence.
The possibility of direct human contact with extraterrestrial life within the highest levels of the U.S. government.
The vast Alaskan wilderness is known for mysterious disappearances, electromagnetic anomalies, stories of strange creatures and UFO sightings; Alaska's many mysteries could be due to a presence that is not of this world.
Terrifying encounters at 40,000 feet; pilot accounts of UFOs taking control of their aircraft; entire jumbo jets disappearing into thin air; since the dawn of aviation, pilots have experienced unexplainable events in the sky.
Enormous, megalithic structures of mysterious origins; a vast underground complex containing the remains of what some believe to be otherworldly beings; the ancient mysteries that exist on the islands of Malta could be connected to alien visitation.
"Ancient Aliens" is counting down the world's top 10 pyramid sites, from a valley in Peru with over 250 hidden pyramids to an ancient Greek city with mysterious 4,800-year-old ruins to Egypt's famous Giza Plateau.
Counting down the world's top 10 mysterious devices, from strange, grooved disks found in a cave in China to an ancient Greek computer to an incredible crystal skull unearthed in Mexico.
"Ancient Aliens" is counting down the world's top 10 mysterious islands, including sites said to be home to giants, remote landmasses that are home to massive megalithic structures, and even islands that disappear into thin air.
"Ancient Aliens" is counting down the top 10 alien craft, from V-shaped objects to orbs of light to flying saucers.
In the early 1900s, Edgar Cayce, a modern-day prophet from the hills of Kentucky, becomes a worldwide sensation; he claims to receive visions of the past and future, he heals the sick, and alleges to have encounters with otherworldly beings.
Whether the gods of Greece including Zeus, Apollo and Poseidon from Mt. Olympus were extraterrestrial visitors to Earth.
In the 21st century, UFOs have gone from fringe science to mainstream obsession; a new generation of UFO hunters employ technology, and unidentified flying objects are openly investigated by the government.
For thousands of years, people have held the belief that everyday objects can possess hidden energy; talismans are seen to provide protection, good fortune, and some are thought to embody a higher power.
Counting down 10 mysteries of the deep, from sunken continents to puzzling ruins on the ocean floor and even artifacts that might be remnants of Atlantis; these underwater mysteries could provide a record of extraterrestrial visitation.
"Ancient Aliens" is looking at alien petroglyphs around the world; from strange, human-like figures to flying craft and carvings of what appear to be astronauts.
In 2021, the United States government broke a 70-year precedent of denying UFOs and released a groundbreaking report on Unidentified Aerial Phenomena.
According to Ancient Astronaut Theorists, the placement of monoliths and their geological makeup could point to extraterrestrial intervention.
Some of the world's most iconic, sacred temples were built atop the ruins of structures that are far more ancient; investigating what compelled early humans to rebuild in the same places again and again.
Ancient astronaut theorists suggest the evidence for unidentified aerial phenomena has become too great to ignore and that the truth about an extraterrestrial presence on Earth will soon be revealed.
Some 2,600 years ago, the most sacred relic of the ancient world suddenly disappeared from history.
Exploring whether ancient accounts of "Star Ancestors" reveal profound truths about both humanity's origins and its future.
Since 2017, the Navy has been releasing photos and videos of unidentified aerial phenomena, and ancient astronaut theorists suggest the images are nearly identical to accounts from centuries ago.
Millions of people around the world have reported encountering shadowy entities who instill fear, shortness of breath, and even paralysis; they could be figments of the imagination or visitors from other worlds or dimensions.
Throughout the ancient world, tales are told of fire-breathing dragons; though fearsome, they have been worshipped as the bringers of great knowledge and credited as the founders of civilization.
Today, more people than ever believe that unidentified flying objects are of alien origin; exploring the possibility that they are capable of bending both time and space.
Giorgio Tsoukalos takes a look back at some of the structures visited all over the world that could provide undeniable evidence of extraterrestrial contact.
A look back at some extraordinary encounters that may provide evidence of an extraterrestrial presence on Earth.
"Ancient Aliens" has examined the oldest and most mysterious rock art on Earth up close, and Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
The team investigates the world's oldest and most incredible relics up close; Giorgio Tsoukalos takes a look back at the most mysterious artifacts from all over the globe, those he believes provide undeniable proof of extraterrestrial contact.
Following investigators across the globe as they go to the sites where signs of alien life have been found; Giorgio Tsoukalos takes a look back at incredible evidence that could offer definitive proof that humans are not alone in the universe.
In Ireland, the notion of the fairy folk dates back thousands of years and originates with stories of powerful shining beings who came down from the sky; exploring if these tales have been inspired by ancient alien visitation.
Discussing whether ancient cultures could have encountered extraterrestrial beings that have achieved eternal life, and discussing the Ancient Astronaut Theorists suggestions.
In the nearly 2,000-year-old text called "The Zohar," there is a curious passage that describes hidden realms beneath the surface of the Earth, each of which is said to be populated by both human and non-human intelligences.
In the 20th century, a mysterious British woman who claimed to be the reincarnation of an ancient Egyptian priestess shocked Egyptologists by accurately locating countless structures and artifacts in the Nile Valley.
Evidence that could provide proof that humans are not alone in the universe.
Giorgio A. Tsoukalos, David Childress and William Henry examine a recently discovered lost city in Peru that has upended the historical timeline of South America, revealing that civilization emerged thousands of years earlier than previously thought.
An exploration of the top 10 mysterious sites on the planet that could prove alien visitation; from the age of the dinosaurs and ancient Egypt.
A countdown of the world's top 10 alien cover-ups, from the famous Roswell Incident to a secret military base rumored to be housing ET technology to recently released UFO videos captured by cameras on Navy fighter jets.
Theorists investigate the mystery of the human genome and ponder the possibility that extraterrestrials aided in the survival of mankind from its earliest days.
Examining the unique geology and location of Mount Shasta in northern California, to determine why it is known as a hotbed of strange events, from Big Foot sightings to UFO encounters to hikers vanishing without a trace.
Counting down the top artifacts that could provide evidence that extraterrestrials once walked among us.
In numerous sacred traditions, the number twelve holds a divine significance. Could this divine number be part of an alien code left for humanity to decipher?
According to the earliest Tibetan traditions, Shambhala, the kingdom of the gods, is hidden high in the Himalaya Mountains; examining if it's possible that this mystical realm truly exists.
The mysterious symbol of the keyhole exists in mystic texts, sacred architecture and ancient artwork found all over the planet.
Ancient cultures recorded stories of enormous beings that descended from the sky; exploring if massive megalithic structures and reported discoveries of towering human-like skeletons reveal that the world was once inhabited by giants.
A multitude of guests and scientists explores everything from human origins to groundbreaking archaeological finds, new understandings of the cosmos, and the profound possibility that humans are not alone in the universe.
Strange ancient objects that leave archaeologists at a loss could suggest that an advanced extraterrestrial civilization existed on Earth for thousands of years.
In the 20th century, pioneering scientists, journalists and investigators defied convention and began documenting UFOs; experts in the 21st century look for undeniable proof of extraterrestrial visitation.
Archaeologists discover that many ancient sites were constructed with an acoustic purpose and often resonate at a frequency that has a profound effect on the human brain; questioning whether ancient people used these sites to contact alien beings.
Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.
In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an alien spacecraft and that remnants may have been overlooked.
The Chilean government questions whether new footage from a Navy helicopter indicates a connection to geoglyphs in the Atacama Desert.
From Egypt to Easter Island, towering figures built by ancient man stand watch over the Earth; are these stone giants simply a testament to humanity's past or could they depict visitors from another world? Experts seek the answers.
In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster, but could new scientific findings reveal that humankind's true origins lie not on Earth but 400 light years away.
In the Mojave Desert, there is a structure built to bestow everlasting life and according to the architect, the blueprint was provided by an extraterrestrial visitor known as the Integratron, could it actually provide the key to immortality.
Accounts of creatures that can shape shift from one form into another can be found, but could similarities between the ancient stories and modern-day alien abduction accounts reveal that shape shifters are real and have come to Earth.
Nestled within a remote valley in Utah is a ranch that some believe is a hotbed of strange, inexplicable phenomena including terrifying creatures, paranormal apparitions and lights in the sky.
UFO witnesses have reported a wide variety of objects in Earth's skies and not only in modern times, but for centuries; could they offer important clues about other intelligent life.
The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington.
Antarctica may serve as home base for extraterrestrial visitors to Earth, but as human exploration of the frozen continent increases, humans may come face to face with the ruins of an ancient advanced civilization buried beneath the ice.
Satellite images have revealed a giant face that appears to be carved into the Earth in Alberta, Canada, which has now become known far and wide as "The Badlands Guardian."
According to physicist Bob Lazar, Element 115 is the fuel source for an alien spacecraft he was hired to reverse-engineer by the U.S. government to find a way to harness its power.
Aliens from the tiny star Sirius B may have visited humans in the distant past, imparting the knowledge of civilization to peoples thousands of miles apart.
Lurking in the oceans are creatures that defy explanation, such as octopuses that can edit their own DNA or animals that can regenerate their entire brain; examining if the oceans are acting as a giant petri dish for alien genetic experimentation.
A look at if ancient Druids traveled to New England and New York's Hudson Valley centuries ago, bringing with them the beliefs and technologies of their alien mentors, the Shining Ones of Irish myth.
Serpent gods are found in the traditions of Mesopotamia, Central and South America, India, China, Japan and the Bible; a look at if these stories describe a race of reptile-like extraterrestrials instead.
A look at if ancient aliens could have shaped human evolution by introducing viral epidemics on Earth.
Extraterrestrials could be altering human DNA and repopulating the Earth with alien-human hybrids; following the trail of evidence from ancient cultures to modern-day animal mutilations and alien abductions.
According to some Ancient Astronaut theorists, entities that have been described as ghosts, angels and extraterrestrials are actually visitors from unseen realms and they walk on Earth.
The native Hawaiians trace their ancestry to beings from the Pleiades star system called the Akua; a look at these islands and if they once had been inhabited by extraterrestrials.
Throughout the ancient world, structures were built to mirror the constellations in the night sky and this is only apparent when they are viewed from high above; a look at the possibility that these structures were designed as messages.
UFOs have been reported at the world's nuclear facilities ever since the first atomic bomb in 1945, with many suspecting that extraterrestrials are watching humanity's nuclear potential.
A mysterious mountain in northern Italy has stood witness to strange sightings in the sky and unexplainable phenomena for hundreds of years but could it be attracting extraterrestrial visitors and there could be technology within its rocky slopes.
A look at the possibility that the human brain possesses extraordinary untapped abilities granted by extraterrestrial beings -- such as telepathy, precognition and psychokinesis; abilities that will enable the next step in the evolution of humans.
A shocking study reveals that the original builders of Stonehenge mysteriously vanished; but Stonehenge's mysterious Bluestone circle could have activated a portal that transported the ancient culture back to their former home among the stars.
Divine substances were consumed by the gods but sometimes gifted to humans to impart great power or wisdom; could the food of the gods be sustenance for alien visitors and does it lend insight into humanity's future.
Tattoos, piercings, and body modification account for a nearly one-billion-dollar industry, but are these practices a bold form of self-expression or could they be motivated by a profound link to ancient ancestors.
In 2019, millions responded to an internet post advocating to storm the gates of the world's most top-secret military installation -- Area 51 but when they did, the U.S. military vowed to defend the base with deadly force.
A look at if governments around the world are preparing mankind for the most startling event in human history, the official disclosure of an extraterrestrial presence on Earth.
Examining some of the thousands of potentially habitable exoplanets discovered over the past 20 years and whether some of them could be home to intelligent extraterrestrial life.
In 2017, news breaks that the Department of Defense recently spent millions investigating reports of UFOs; the latest disclosure about a series of secret government UFO projects dating back decades.
Researchers claim hidden messages can be found within the works of Leonardo da Vinci, and other art throughout history, that may reveal an extraterrestrial influence.
Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena.
Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code.
A look at whether or not Area 51's notoriety acts as a cover-up to much bigger, top-secret extraterrestrial experiments taking place at multiple locations.
Ancient astronaut theorist Giorgio A. Tsoukalos explores the latest scientific discoveries at some of the world's most ancient places to find evidence that extraterrestrials visited Egypt in the distant past.
Treasure hunter Marty Lagina and Ancient Astronaut theorist Giorgio A. Tsoukalos explore the bizarre statues, mysterious pyramids and gigantic structures left behind by one of the most mysterious cultures in the ancient world in Sardinia, Italy.
Ancient astronaut theorists Giorgio A. Tsoukalos and David H. Childress explore a Polynesian land of bizarre figures and forbidden places in search of what could be the ultimate evidence of mankind's extraterrestrial origins.
A secret alliance hidden in plain sight; joint space missions; questions remain whether or not the U.S. and Russia have been working together from the very beginning of the Space Race in preparation for the ultimate extraterrestrial encounter.
Ancient cultures from around the world believed that meteorites were sacred stones imbued with the power of the Gods; Ancient Astronaut theorists ask whether or not these space rocks could be pieces of extraterrestrial technology.
A look at whether or not intelligent robots are a threat to humanity or the next step in human evolution; as man and machine begin to merge, humanity could be fulfilling a destiny prepared for by aliens thousands of years ago.
Erich von Däniken's "Chariots of the Gods?" suggests that aliens visited Earth in the distant past, and there are those who believe that he will be proven right.
An examination of possible encounters humans could have once colonies are established beyond Earth.
Theorists speculate about metal artifacts that could provide physical evidence of extraterrestrials visiting Earth in the distant past; in Jacksonville, Fla. a strange metallic sphere falls from the sky; an ancient aluminum wedge baffles historians.
In Wiltshire, England, Rudloe Manor appears to be nothing more than an English manor house, but researchers argue it has been the epicenter of British research into UFOs since World War II.
According to legend, a curse was placed on the tomb of King Tutankhamun; researchers theorize that the curse came about as the result of alien technology with the purpose of protecting the truth about an otherworldly event as well as an alien device.
Archaeologists and anthropologists make discoveries that receive no notice because they don't fit into the accepted scientific paradigm, such as an ancient hammer found in Texas or elongated skulls found on nearly every continent.
Researchers suggest that the ancient site of Teotihuacan in central Mexico was once home to a highly advanced, perhaps extraterrestrial, civilization; excavations at Teotihuacan have unearthed discoveries out of place in the ancient world.
Researchers find that dozens of megalithic sites across the globe were designed to emanate the exact same frequency, causing them to speculate that certain frequencies may allow humans to connect with extraterrestrial forces.
A memo from 1952 surfaces informing President-elect Dwight Eisenhower about the existence of a top-secret group of scientists, government officials and military personnel who are tasked with investigating reports of UFOs.
Researchers ask if Cloud computing represents the rediscovery of an ancient repository of knowledge known as the Akashic Record; neuroscientist Dr. Dario Nardi measures the brainwaves of Dr. Deepak Chopra as he enters a state of deep meditation.
Giorgio A. Tsoukalos studies India's Sanskrit texts, which are filled with descriptions of brain surgery, flying crafts, nuclear physics, and other advanced sciences; Hindu scholars attribute this knowledge to a time when gods walked among humans.
Theorists suggest that some extraterrestrials may closely resemble animals, as evidenced by gods depicted with animal traits; researchers suggest that some animals may have been planted here by aliens as part of an experiment to shape life on Earth.
While more than 1.5 billion people believe in reincarnation, ancient astronaut theorists suggest that extraterrestrials designed the human body to be a vessel for otherworldly entities.
Japanese legend states that the Ishi-no-Hoden megalith, carved from a single rock and weighing roughly 500 tons, was built to depict a sky ship made of stone that the ancient people witnessed descending from the heavens.
In China, hundreds of strange disks are discovered in a cave that appear to tell the story of an ancient extraterrestrial crash on Earth; shortly thereafter, the disks are confiscated by the Chinese government and dismissed as a hoax.
The ancient site of Gobekli Tepe challenges what archaeologists believe about the past; the megalithic stone complex was built over 12,000 years ago, 5,000 years before the first known civilization was said to have emerged in Mesopotamia.
Satellite imagery reveals what appears to be the tops of manmade pyramids in Antarctica; ancient astronaut theorists conjecture that extraterrestrials may have colonized an ice-free Antarctica before a global catastrophe plunged it into an ice age.
Theorists suggest that a voyage to Mars will unlock ancient mysteries about the extraterrestrial origins of the human species while providing the key to its long-term survival.
While technology spurs human evolution and takes people in a radical new direction, ancient astronaut theorists suggest that cyborg-like, super beings once walked the earth.
Satellite images, ground-penetrating radar and thermal scanning leads to new evidence that appears to substantiate the belief held by millions of people that Earth has been visited in the past by extraterrestrial beings.
Theorists suggest that extraterrestrials have been communicating with mathematicians and engineers through the universal language of mathematics and binary code, influencing Nikolai Fyodorov and other visionaries to advocate for space exploration.
Theorists suggest that the iconic religious symbol of the cosmic egg demonstrates that human ancestors possessed a knowledge of the DNA double-helix spiral and human biological coding.
In Australia, Aboriginal people tell sacred stories about sky gods visiting Earth in fire-spewing crafts and "seeding" the planet.
Stories of emperors, kings and pharaohs consulting a pantheon of nine gods are found in many cultures lending credence to the theory that there is an intergalactic council of nine working behind the scenes to monitor and guide humanity.
Theorists suggest that compelling evidence of extraterrestrial visitation exists in China, the cradle of one of the earliest and most influential civilizations on Earth.
Recent archaeological finds suggest that humans once shared the planet with various types of intelligent human-like species in a real-life version of "The Lord of the Rings."
Many believe that the rise of communism led to secrecy surrounding ancient and modern extraterrestrial contact in Russia; theorists point to the archeological site of Arkaim as evidence that extraterrestrial visitations took place in Russia.
The U.S. military denies that the 1947 Roswell crash involved anything other than a weather balloon, but theorists claim that other UFO crashes were reported all over the world at the same time as the crash and that the wreckages were retrieved.
Ancient mythologies tell stories of humans being abducted by otherworldly beings, even as thousands of people continue to report being taken by aliens and then returned with implants and genetic mutations.
Theorists suggest that Shiva, an important Hindu god, may have been the leader of an extraterrestrial faction that came to Earth wielding advanced technology, pointing to an ancient rock-cut Hindu temple as proof.
Modern archaeologists are continuously discovering artifacts and sites that defy the conventional timeline of human history.
Wernher von Braun's prediction that people would explore Mars and build a space station has become reality.
In almost every culture, there are stories of opposing forces at work here on Earth; forces of a supernatural or otherworldly nature.
Theorists have suggested that many of the divine beings depicted in cultures actually reflect extraterrestrial visitations that human ancestors did not understand.
Scientists have found thousands of planets capable of supporting life; possibly answering the question of whether or not human life is alone in the universe.
In August of 2014, Russian cosmonauts aboard the International Space Station discover living sea plankton covering parts of the windows; there might be alien life forms that inhabit the seas.
Over 10,000 crop circles, appearing in 50 different countries, have been reported; examining whether they are all part of an elaborate hoax or not.
On March 19th, 2002, Gary McKinnon was arrested for hacking into 97 computers over a 13-month period; McKinnon claims that he found evidence of a secret American space fleet.
Specific regions of the world that are off-limits to exploration due to warfare, instability and inaccessibility.
Infrared satellite technology detects pyramids hidden underneath the sand in Egypt and airborne laser sensors discover long-lost pyramids beneath the jungles of Central America; recent excavations reveal fascinating new facts about pyramids.
Stories of civilizations large and small disappearing without a trace can be found throughout history and across the globe.
Ancient astronaut theorists have long proposed that extraterrestrials played a pivotal role in human history, and some believe they continue to keep a careful watch over the progress of mankind.
Theorists speculate that ancient stories about fiery chariots, flying carpets and fire-breathing dragons could be descriptions of misunderstood technology involving mysterious crafts.
Mysterious devices, including a 2,000-year-old computer, a power plant in the Great Pyramid, and a Nazi-era time machine.
The myths behind reptilian aliens may provide evidence that suggests the creatures are more than just science fiction.
Inventor Nikola Tesla guided mankind toward a new industrial era.
In 2012, scientists at the CERN laboratory announce the discovery of the God Particle, which may have been left here on Earth by extraterrestrial beings and may reveal the truth about human origins.
Stories of strange encounters during major events in history and myths containing gods that intervene in human affairs may be early accounts of alien encounters.
Sacred entryways to the land of the gods; researchers uncover a mysterious and toxic cave in Turkey; otherworldly creatures appear and disappear in Mexico.
Strange rock carvings from 8,000 B.C.; unexplained sightings in the new world; a frightening anomaly plaguing the American west; a strange man-made cave filled with ancient objects and mummies; strange lights and unexplained weather anomalies.
Mysterious relics and sealed vaults may have been hidden on purpose and protected by an extraterrestrial source.
Probes have been sending information about Mars back to scientists for nearly 40 years. Photographs of the planet reveal mysteries that could mean life on Mars.
Spiritual leaders known as shamans have healed, protected and advised people throughout history. Exploring the possibility that shamans communicated with extraterrestrials to influence mankind.
Insects that have inhabited Earth for hundreds of millions of years may provide a link to extraterrestrial beings.
Mythological tales of intimate encounters with otherworldly beings point to possible alien intervention contributing to the genetic makeup of humans.
The ancient Egyptian design of the three pyramids of Giza; diverse cultures worship the all-knowing triads; an ancient tablet noted the power of the number three; the language of human DNA is written in a pattern of threes.
Thirteen crystal skulls which are believed to hold a mystical power whose secrets will be revealed when the skulls come together to form a global grid.
Accounts of magic suggest possible evidence of advanced otherworldly knowledge.
Ancient texts indicate that Satan may have been an extraterrestrial who was more of an ally to humanity than an enemy by passing along knowledge that planted the seed for civilization.
Questioning how humans learned to heal by exploring ancient possibilities involving the human body, breakthroughs in medicine and medical procedures..
Investigating the possible connection between powerful rulers of the past and extraterrestrial forces.
Theorists ask whether the truth of humankind's origins can be found in the mysterious relics revered by ancient cultures for thousands of years and found on display in museums, temples and churches.
Remote islands may hold evidence of UFO activity; legends of lost islands, advanced civilizations and Eden-like paradises told by sailors throughout human history may point to ancient alien origins.
The Ark of the Covenant is said to have divine powers.
Exploring why ancient civilizations believed mountains were the homes of gods.
Researchers explore the strange similarities among pyramids in Egypt, Central and South America, China, Africa, and Indonesia, including a possible extraterrestrial link connecting these structures.
In 1980, three young military men are sent into a UK forest to investigate strange lights, and they reportedly find a spacecraft, then they are ordered to never speak of the incident again; UFO encounters kept under wraps and what they reveal.
Ancient alien theorists speculate about the depiction of light bulbs in Egyptian hieroglyphs and the batteries discovered among Mesopotamian artifacts and whether extraterrestrials introduced electricity to ancient peoples.
Researchers suggest that the Orion constellation may have been a star-gate or an entry point for extraterrestrials visiting Earth for thousands of years.
Ancient alien theorists believe there is an extraterrestrial connection to the scientific genius of famous historical figures such as Albert Einstein, Galileo, Archimedes, and Aristotle.
Archeologists uncover ancient tombs filled with strange items and writings; remarkable similarities found at these sites cause theorists to believe that some of these technically advanced tombs were designed with the help of extraterrestrials.
Historical prophets may have had alien influences; there are some who believe that extraterrestrials have used intermediaries; they were used to transmit important moral, philosophical and artistic codes to humanity.
Hundreds of gigantic lines extend for miles throughout the Peruvian desert; scholars are divided as to who built them, and why; experts say Nazca may have been a mining operation for advanced beings.
In 1975, Travis Walton claims to have been abducted by extraterrestrial beings, but researchers say that alien abductions have been taking place for thousands of years, as depicted in biblical stories of abductions by otherworldly beings.
A look into the Norse Viking; how they became teachers and destroyers; the gods they worshipped were fearsome and mysterious.
Extraordinary feats of construction, created without the use of advanced tools or technology, can be found from the jungles of Costa Rica to England's rural countryside.
Extraterrestrial visitors may have influenced Mayan culture and helped ancient Mayans make striking advances in science, mathematics, time keeping, and astronomy.
The end of the Mayan Long Count Calendar and potential alien explanations for what may come.
Beings with big heads and giant eyes are called the greys and have been depicted in ancient rock art and carved stone figurines found all over the world.
Natural disasters in the ancient world, including volcanic eruptions, earthquakes, floods, and meteor strikes may have originated with the meddling of celestial beings.
Research into alien contact in the recent past including evidence from former astronauts, secret government files, and NASA scientists.
A 14,000-year-old set of ruins with complex interlocking blocks defies explanation. Some believe their origin may be extraterrestrial.
While ancient myths and legends speak of an ape-like giant stalking the earth, theorists speculate that Bigfoot creatures belong to an alien species that once visited Earth in the distant past.
Considering the possibility that sightings of alien beings or UFOs may be evidence of time travelers from the future.
Ancient alien theorists wonder about the depiction of a stegosaurus in Angkor Wat, the world's largest ancient religious temple, and ask how the ancients could have known about dinosaurs.
A cemetery in Aurora, Texas claims to hold the body of an alien; petroglyphs depict strange beings in Utah; 19th century ranchers report seeing an otherworldly creature emerge from Elizabeth Lake; the home of Wyatt Earp in Tombstone, Ariz.
Theorists speculate that a flying creature described by Hindu scripture may have been an alien craft; researchers wonder whether centaurs and other fabled creatures were the result of extraterrestrial transplantation procedures.
Jerusalem's Temple Mount; Islam's shrine at Mecca; the temple at Baalbek, Lebanon.
A church in southern France is said to hold the key to alchemy; locals in Peru believe UFO sightings are connected to lost gold at the bottom of Lake Puray; a library left behind by extraterrestrials.
Festivals, coronations, funerals, and other modern rituals could reflect attempts by early humans to emulate ancient alien visitors.
An ancient mountaintop fortress in Peru constructed with laser-like tools; temples at Vijayanagara India harness cosmic energy; an acoustic chamber in Malta enables interplanetary communication.
Strange carvings in the Mayan city of Copan; the ancient Nazca people who altered their bodies and land.
From gunpowder to missiles, ancient alien theorists speculate that lethal weapons may have been created with the help of extraterrestrials.
An investigation into the possible connection between extraterrestrial activity and the places with evil reputations, such as Australia's Black Mountains and the forest at the base of Mount Fuji in Japan.
The founding fathers knowledge of aliens shows up in symbols, architecture and the founding documents of the United States of America.
People who have claimed to have otherworldly knowledge lead followers to commit horrific acts of violence.
People consider whether ancient man's spectacular structures were built by humans alone or with otherworldly visitors.
Theorists speculate about age-old stories of encounters with zombies, vampires and undead creatures and whether these stories point to meetings with extraterrestrials.
Ancient alien theorists explore the extraterrestrial origins of mythological gods and ask whether stories of superhuman strength, supernatural powers and the ability to fly can be traced to factual events involving alien beings.
Unexplained advances in human evolution point to the work of interstellar beings.
Planes and ships go missing in the Bermuda Triangle; magnetic anomalies in Mexico's Zone of Silence; an ancient doorway carved in Peru's Puerta de Hayu Marka; Markawasi's plateau' strange rock formations.
Analyzing whether aliens supplied the missing link that accelerated human evolution, advancing civilization.
The infamous tale of the long lost city of Atlantis; ruins of recently discovered temples beneath Lake Titicaca in Peru; ancient Indian texts, known as Sangams, describe sunken cities where aliens and humans intermingled thousands of years ago.
A cave in Ecuador that may contain books with secrets of alien technology; an ancient underground city in Turkey; rumors of the U.S. military working alongside aliens in a secret base; recent archaeological discoveries in the Yucatan.
Ancient alien theorists speculate that Adolf Hitler's quest for world domination was aided and abetted by extraterrestrial technology; during World War II, there are reports that Germans built a craft with the help of blueprints from alien beings.
Investigating whether mankind's quest to unlock the secrets of technology came from our imaginations or from otherworldly beings.
Investigating whether angels might really be travelers visiting Earth from distant planets.
Evidence of ancient aliens found in mysterious structures throughout the world.
The story of the Great Flood; extraterrestrial battles that caused wide-scale destruction; reports of UFOs lurking in the shadows of recent natural disasters; The Book of Revelations and the Dead Sea Scrolls.
Searching for clues about whether aliens visited ancient Earth in Indian Sanskrit texts, megalithic stone structures in Egypt and Jewish Zohar writings.
Strange evidence in cultures throughout history indicates aliens came to Earth on missions to explore, obtain raw materials, experiment on humans and conquer; Sumerian tablets describe an alien race; Egyptian hieroglyphs depict hybrid creatures.
Reports of encounters with strange beings and UFO sightings have occurred throughout history; a 13th-century history book depicts a creature descending from a craft; medieval art represents disc-shaped objects in the heavens.
Examining possible evidence of 20th-century alien contact, including a 1942 aerial battle over Los Angeles and reports of a 1947 UFO crash in Roswell, N.M.