What on Earth?
What on Earth?
What on Earth?
What on Earth?
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Experts Investigate a mysterious formation in the Antartic ice.
02:56
What on Earth?
Antartic Glacier
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Experts investigate mysterious formations on a Mediteranian Island.
02:54
What on Earth?
Thumbprint Island
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New data from NASA satellites reveal a sunken lost continent in the Indian Ocean.
02:56
What on Earth?
The Sunken Continent
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A forbidden island points to a strange South American town that locals claim was the home of Adolf Hitler.
02:29
What on Earth?
Hunt for Hitler
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Experts investigate an eye shaped lake containing a mysterious floating island.
03:01
What on Earth?
Argentinian Floating Island
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Experts question the purpose of an artificially created island constructed by the military.
02:47
What on Earth?
Operation Delerium
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A deadly plague eats away at a Rhode Island forest.
03:00
What on Earth?
The Insect Destroyer
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At the height of the cold war, the CIA is confounded by a powerful new weapon dubbed the Caspian Sea Monster.
02:45
What on Earth?
Caspian Sea Monster
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An eerie green vortex of death swirls in the Baltic sea.
02:53
What on Earth?
Baltic Vortex of Death
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Experts investigate a river surrounded by death.
02:16
What on Earth?
River of Blood
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Experts investigate a seemingly alien lake, that may reveal secrets about Martian life.
02:54
What on Earth?
A Martian Lake in Canada
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A lightning bolt scars the Australian outback.
02:38
What on Earth?
The Legend of the Mega-Lightning Bolt
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A ghost ship appears on a California beach.
03:07
What on Earth?
Ship of Sin
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The search for Nazi treasure leads to a secret underground bunker.
03:01
What on Earth?
Search for Nazi Treasure
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A military satellite witnesses the disappearance of a Russian airliner over an ISIS danger zone.
02:59
What on Earth?
Terror in the Skies
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Investigators uncover an ancient forge from the dark ages.
03:00
What on Earth?
A Cumbrian Conundrum
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What on Earth?
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This Island Disappeared From Satellite Images
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00:36
What on Earth?
A 13 Year Old Discovered an Ancient Maya City
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What Is This Giant Geometric Shape in South America?
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Thanks to GPS, they know what land is theirs.. even down to the inch.
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What on Earth?
This Tribe is Using Tech to Protect Their Land
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Even stranger, it disappeared less than a year later.
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What on Earth?
This Island Appeared Overnight
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Author Nick Sagan hasn't seen his godfather, Frank Drake, in over 30 years. We capture their reunion - and find out how Drake became friends with Nick's famous father, Carl Sagan, in this exclusive clip.
02:31
Alien Encounters
Frank Drake and Nick Sagan Meet Again
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What would receiving a message from an alien civilization tell us about human evolution, and about surviving the most serious problems facing our planet?
01:35
Alien Encounters
Humanity's Evolutionary Outcome
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Author Nick Sagan hasn't seen his godfather, Frank Drake, in over 30 years. We capture their reunion - and find out how Drake became friends with Nick's famous father, Carl Sagan, in this exclusive clip.
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Nick Sagan & Frank Drake Reunite
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