What On Earth?
TVPG
Science
Documentary
An exploration of breathtaking images and unfathomable mysteries.
Cast & Crew
Upcoming TV Airings
The airings below are based on a generic national schedule. Times and dates can vary by TV provider.
Friday, February 27
Riddle of Sardinia Tower
Season 11 • Episode 5
The relics of a declining ancient civilization that may have suffered a celestial catastrophe.
Friday, February 27
Doomsday Lair of Greece
Season 11 • Episode 3
A network of massive satellites linked to a hidden NATO doomsday communications bunker.
Friday, February 27
Mystery of the Welsh Mine
Season 11 • Episode 4
Experts investigate a hidden tunnel containing the remains of an abandoned slate mine.
Friday, February 27
Circles of the High Kings
Season 11 • Episode 6
Experts investigate an ancient site linked to the elusive hunt for the Ark of the Covenant.
Friday, February 27
Secret Soviet Spacecraft
Season 11 • Episode 1
A hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.
Friday, February 27
Range of Nazi Evil
Season 11 • Episode 2
A massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.
Saturday, February 28
Circles of the High Kings
Season 11 • Episode 6
Experts investigate an ancient site linked to the elusive hunt for the Ark of the Covenant.
Saturday, February 28
Secret Soviet Spacecraft
Season 11 • Episode 1
A hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.
Saturday, February 28
Range of Nazi Evil
Season 11 • Episode 2
A massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.
Saturday, February 28
Mystery of the Welsh Mine
Season 11 • Episode 4
Experts investigate a hidden tunnel containing the remains of an abandoned slate mine.
Friday, March 6
Ancient Rome's El Dorado
Season 11 • Episode 10
One of the largest and most important gold mining operations of the Roman Empire.
Friday, March 6
Poland's Secret Nazi Compound
Season 11 • Episode 8
Experts investigate a clandestine Nazi base linked to the downfall of WWII Germany.
Friday, March 6
Mystery of the Fallen Star
Season 12 • Episode 2
Experts investigate a lost Civial War fort linked to an extraordinary community with a tragic past.
Friday, March 6
Holes of Dead Sea Destruction
Season 11 • Episode 9
Experts reveal a history of destructive water diversion linked to massive sinkholes.
Friday, March 6
Bullseye in the Sky
Season 12 • Episode 1
A bizarre pattern of enormous circular clouds obscuring an island in the eastern Atlantic.
Friday, March 6
Russia's Lightning Lab
Season 11 • Episode 7
Aerial drone imaging captures oddly shaped industrial-sized towers situated in a forest clearing.
Saturday, March 7
Holes of Dead Sea Destruction
Season 11 • Episode 9
Experts reveal a history of destructive water diversion linked to massive sinkholes.
Saturday, March 7
Bullseye in the Sky
Season 12 • Episode 1
A bizarre pattern of enormous circular clouds obscuring an island in the eastern Atlantic.
Saturday, March 7
Russia's Lightning Lab
Season 11 • Episode 7
Aerial drone imaging captures oddly shaped industrial-sized towers situated in a forest clearing.
Saturday, March 7
Mystery of the Fallen Star
Season 12 • Episode 2
Experts investigate a lost Civial War fort linked to an extraordinary community with a tragic past.
Friday, March 13
Nevada's Mystery Marking
Season 12 • Episode 7
An emergency landing field linked to one of the most astonishing test programs in aviation history.
Friday, March 13
Blood Feud of Gresham Castle
Season 12 • Episode 5
Experts investigate rival royal families and a lost castle destroyed during a medieval blood feud.
Friday, March 13
Indiana's War Factory
Season 12 • Episode 3
A derelict WWII munitions factory that played a crucial role in U.S. military history.
Friday, March 13
Turkey's Lost Terror Dome
Season 12 • Episode 4
Experts investigate a lost, ancient amphitheater with a history steeped in gladiatorial bloodshed.
Friday, March 13
The Boneyard of Arizona
Season 12 • Episode 6
Satellite images capture miles of aircraft precisely arranged in the vast Arizona desert.
Friday, March 13
Ghost Ship of Ireland
Season 12 • Episode 8
A ghost ship appears overnight on the shores of Ireland; it may help solve other mysteries.
Friday, March 13
Turkey's Lost Terror Dome
Season 12 • Episode 4
Experts investigate a lost, ancient amphitheater with a history steeped in gladiatorial bloodshed.
Saturday, March 14
The Boneyard of Arizona
Season 12 • Episode 6
Satellite images capture miles of aircraft precisely arranged in the vast Arizona desert.
Saturday, March 14
Ghost Ship of Ireland
Season 12 • Episode 8
A ghost ship appears overnight on the shores of Ireland; it may help solve other mysteries.
Saturday, March 14
Indiana's War Factory
Season 12 • Episode 3
A derelict WWII munitions factory that played a crucial role in U.S. military history.
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