The BEST episodes of What on Earth? season 12

Every episode of What on Earth? season 12, ranked from best to worst by thousands of votes from fans of the show. The best episodes of What on Earth? season 12!

Eyes in the sky. Watching us from space. Hundreds of satellites showing us the world like we've never seen it before. Capturing images which are breathtaking but bizarre. Objects and phenomena which defy explanation. Baffling phenomena seen from space, what on Earth are they?

Last Updated: 5/4/2024Network: Science ChannelStatus: Continuing
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Arctic Hunters of Norway
star
7.88
17 votes

#1 - Arctic Hunters of Norway

Season 12 - Episode 10 - Aired 3/16/2023

Aerial archaeologists capture a series of mysterious dots buried beneath the remote, frozen landscape of Finnmark, Norway; experts investigate and reveal revolutionary hunting techniques developed by the oldest surviving Norwegian tribe.

Watch Now:AmazonApple TV
Blood Feud of Gresham Castle
star
7.63
16 votes

#2 - Blood Feud of Gresham Castle

Season 12 - Episode 5 - Aired 2/9/2023

Satellite images capture a mysterious fortification concealed beneath a patch of woodland in the remote stretches of Norfolk, England; experts investigate rival royal families and a lost castle that was destroyed during a medieval blood feud.

Watch Now:AmazonApple TV
Indiana's War Factory
star
7.60
20 votes

#3 - Indiana's War Factory

Season 12 - Episode 3 - Aired 1/26/2023

Satellite images capture a large compound of abandoned structures that are overgrown with vegetation in Indiana; experts investigate and uncover a derelict WWII munitions factory that played a crucial role in US military history.

Watch Now:AmazonApple TV
Secrets of Biosphere 2
star
7.60
15 votes

#4 - Secrets of Biosphere 2

Season 12 - Episode 9 - Aired 3/9/2023

Satellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona; experts investigate a highly controversial research facility designed to prepare humanity for life on another world.

Watch Now:AmazonApple TV
Turkey's Lost Terror Dome
star
7.55
20 votes

#5 - Turkey's Lost Terror Dome

Season 12 - Episode 4 - Aired 2/2/2023

Aerial drone imaging captures a circular man-made structure that appears to be centuries-old in the remote forests of Aydin, Turkey; experts investigate a lost ancient amphitheater with a history steeped in gladiatorial bloodshed.

Watch Now:AmazonApple TV
Mystery of the Fallen Star
star
7.43
21 votes

#6 - Mystery of the Fallen Star

Season 12 - Episode 2 - Aired 1/19/2023

Aerial archaeologists use laser imaging to capture a distinct star-shaped pattern carved into the marsh of a Florida swamp; experts investigate and reveal a lost Civial War fort linked to an extraordinary community with a tragic past.

Watch Now:AmazonApple TV
Bullseye in the Sky
star
7.42
19 votes

#7 - Bullseye in the Sky

Season 12 - Episode 1 - Aired 1/12/2023

Satellite images capture a bizarre pattern of enormous circular clouds obscuring the Spanish island of La Palma in the eastern Atlantic. Experts investigate the 2021 Cumbre Vieja volcanic eruption and uncover evidence of an unfolding natural disaster that could potentially threaten millions of lives.

Watch Now:AmazonApple TV
Ghost Ship of Ireland
star
7.32
25 votes

#8 - Ghost Ship of Ireland

Season 12 - Episode 8 - Aired 3/2/2023

A ghost ship appears overnight on the shores of Ireland. Could it help shed light on the fate of vessels claimed by the most notorious patch of ocean on earth?

Watch Now:AmazonApple TV
The Boneyard of Arizona
star
7.18
22 votes

#9 - The Boneyard of Arizona

Season 12 - Episode 6 - Aired 2/16/2023

Satellite images capture miles of aircraft precisely arranged in the vast Arizona desert; experts investigate the largest aircraft storage facility on Earth and the rotting remains of a defining moment in Cold War history.

Watch Now:Apple TV
Nevada's Mystery Marking
star
7.17
18 votes

#10 - Nevada's Mystery Marking

Season 12 - Episode 7 - Aired 2/23/2023

Satellite images capture an enormous X shape mysteriously carved with precision in the remote Nevada desert; experts investigate a military emergency landing field linked to one of the most astonishing test programs in aviation history.

Watch Now:Apple TV