Space & Beyond
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What on Earth?
Circular forest next to a cannibal site; a crater could be evidence of Tesla's doomsday device;.
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What on Earth?
Experts use cutting-edge technology to reveal the truth behind sinister mysteries from space.
What on Earth?
A strange facility is spotted in Russia; experts investigate if it's hiding evidence of alien life.
What on Earth?
When satellites spot an odd structure, experts reveal secrets from a strange place.
What on Earth?
Experts investigate a possible response to a message sent to an alien star cluster in 1974.
What on Earth?
Experts investigate if a sinister cave in Iceland could hold secrets of alien worlds.
What on Earth?
Satellites discover a mysterious trail of sinister black objects in the ice of Antarctica.
What on Earth?
Experts investigate a strange structure in the Gobi Desert that could reveal lost treasure.
What on Earth?
A strange, red plane is discovered near the sight of the Roswell UFO incident.
What on Earth?
Experts discover a monster graveyard at a mysterious site in the Gobi Desert.
What on Earth?
A site in the Atlantic Ocean causes instruments on the International Space Station to malfunction.
What on Earth?
Circles of reindeer appear in remote tundra of Sweden; possible results from Chernobyl disaster.
What on Earth?
When an island off the coast of Mexico disappears, officials scramble to find an explanation.
What on Earth?
The people of a thriving Midwestern town suddenly disappear, they leave behind an eerie ghost town.
What on Earth?
Satellites spot anomalies in the unexplored Amazonian jungle.
What on Earth?
Using cutting-edge tech, experts uncover if this mysterious city could be home to a dark secret.
What on Earth?
Satellites spot an anomaly at Egypt's oldest pyramid, uncovering a long-lost labyrinth.
What on Earth?
Satellite images could point to long-lost relics buried in an unexplored city in the Nile Valley.
What on Earth?
Satellites show a spiral structure from space and experts think it may be the lost city of Atlantis.
What on Earth?
When an extreme drought hits Spain, the ruins of a long-lost civilization suddenly emerge.
What on Earth?
Satellite images capture evidence of a town that may be part of a military plan to battle zombies.
What on Earth?
Crop circles spotted on an island might not be from aliens, but from a threat closer to home.
What on Earth?
Satellite images capture a volcanic island that is home to a primordial slime.
What on Earth?
Satellite images capture evidence of a mythical lost pyramid in China that's been hidden.
What on Earth?
The remains of an abandoned settlement high in the mountains of Peru could be ancient Roman.
What on Earth?
Mysterious satellite images lead an archaeologist to investigate a cemetery on Devil's Island.
What on Earth?
Satellites capture a temple-like structure hidden deep in the forests of Poland; rituals.
What on Earth?
Satellites capture two strange patterns in the desert, and they are right next to Area 51.
What on Earth?
New evidence in Wales may point to King Arthur's mythical Round Table.
What on Earth?
Strange anomalies in the Amazon jungle stoke rumors of a long-lost Nazi base in the Americas.
What on Earth?
Satellite evidence of a strange building on a mysterious island owned by Jeffrey Epstein.
What on Earth?
Experts investigate the land of the Aztecs for extraterrestrial connections.
What on Earth?
Experts uncover a burial ground that may have been a portal to the Viking spiritual realm.
What on Earth?
Experts investigate a war-torn fortress with a connection to the ruins of a military installation.
What on Earth?
Uncovering a gravesite with remains of decapitated skeletons and possible vampire burials.
What on Earth?
Experts investigate evidence of a mysterious structure in a remote and rocky area of Hawaii.
What on Earth?
Experts investigate a gigantic ship that emerges from the sands of a strange island.
What on Earth?
Experts investigate Cold War evidence to reveal an Atlantis-like city built by the Soviets.
What on Earth?
Experts uncover evidence of catastrophic military testing in the desert landscape of New Mexico.
What on Earth?
An investigation reveals a secret nuclear weapons testing cover-up by the British government.
What on Earth?
Satellite images capture groups of circular structures in the forests of Derbyshire, England.
What on Earth?
Experts uncover ruins of a 19th century Apache fortification linked to a treacherous migrant route.
What on Earth?
Satellite images capture a strange castle-like structure hidden in the dense woodlands of Scotland.
What on Earth?
Experts uncover a mysterious labyrinth with links to ancient Viking black magic and dark rituals.
What on Earth?
Experts investigate an experimental bomb testing site critical to WWII British weapons development.
What on Earth?
Aerial drone imaging captures a sophisticated complex of lost, ancient Roman buildings in Yorkshire.
What on Earth?
Experts investigate a landscape linked to prohibition activity and a prolific WWI munitions factory.
What on Earth?
A collection of sprawling towns that appear to be completely unoccupied in Belarus.
What on Earth?
Satellite images capture a cone-like structure perched on the summit of a mountain range in Turkey.
What on Earth?
A hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.
What on Earth?
A network of massive satellites linked to a hidden NATO doomsday communications bunker.
What on Earth?
Satellites capture bizarre structures on the Greek island of Kefalonia.
What on Earth?
Experts investigate a hidden tunnel containing the remains of an abandoned slate mine.
What on Earth?
The relics of a declining ancient civilization that may have suffered a celestial catastrophe.
What on Earth?
Experts investigate an ancient site linked to the elusive hunt for the Ark of the Covenant.
What on Earth?
Aerial drone imaging captures oddly shaped industrial-sized towers situated in a forest clearing.
What on Earth?
Experts investigate a clandestine Nazi base linked to the downfall of WWII Germany.
What on Earth?
Experts reveal a history of destructive water diversion linked to massive sinkholes.
What on Earth?
One of the largest and most important gold mining operations of the Roman Empire.
UFOs: The Lost Evidence
Newly declassified documents are leading UFO researchers to believe UFOs may inhabit our oceans.
UFOs: The Lost Evidence
The ultra top-secret military base in the remote deserts of Utah known as Area 52.
UFOs: The Lost Evidence
From the lore and history of ancient Egypt, to the myths of Native Americans, and even the art of the Renaissance period, mankind's past is riddled with the evidence of UFOs.
UFOs: The Lost Evidence
New evidence pointing to the possibility that ancient man was visited by extraterrestrials.
UFOs: The Lost Evidence
Investigating whether deathbed confessions provide real evidence of the existence of UFOs.
UFOs: The Lost Evidence
UFO sightings by pilot and astronaut experts are far more common than we're lead to believe.
UFOs: The Lost Evidence
Evidence reveals the development of Nazi weapons not long after an alleged UFO crash.
UFOs: The Lost Evidence
Researchers investigate what really happened during encounters between police and UFOs.
UFOs: The Lost Evidence
There are landmark cases of alien abduction that scholars struggle to refute.
UFOs: The Lost Evidence
An exploration into whether breakthroughs are the result of human efforts or contact with UFOs.
UFOs: The Lost Evidence
Investigators reveal the secret history of U.S. presidents and UFOs.
UFOs: The Lost Evidence
The U.S. government continues to deny the existence of extraterrestrials.
UFOs: The Lost Evidence
The Royal Air Force regularly encounters UFOs, but the British government denies the sightings.
UFOs: The Lost Evidence
Evidence suggests contact with aliens may have influenced humankind and many of its sacred sites.
UFOs: The Lost Evidence
New evidence and modern-day UFO sightings have experts rethinking Native American myths.
UFOs: The Lost Evidence
A look at whether the desire for gold is the result of extraterrestrial landings in the past.
Return to the Moon: Seconds to Arrival
Engineers count down the final moments of a milestone in space travel.
How the Universe Works
New discoveries reveal the secrets of the strange structures where stars are born and die.
How the Universe Works
Scientists investigate the possibilities for time travel, one of the toughest questions in physics.
How the Universe Works
Galaxies are in combat across the universe, and the Milky Way will face its biggest opponent ever.
How the Universe Works
New technology may be able to explain where the edge of the universe is or what happens there.
How the Universe Works
Scientific experts explore how Saturn's moons offer new insight into the Solar System.
How the Universe Works
Using the latest technology, experts investigate the secrets of the last stars of the cosmos.
How the Universe Works
Fresh data from the Cassini spacecraft is helping scientists make brand new discoveries.