1. Bullseye in the Sky

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. 12 January 2023. 42 min

Satellite capture a bizarre pattern obscuring an eastern Atlantic island.

2. Mystery of the Fallen Star

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. 19 January 2023. 42 min

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 Civil War fort linked to an extraordinary community with a tragic past.

3. Indiana's War Factory

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. 26 January 2023. 42 min

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.

4. Turkey's Lost Terror Dome

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. 2 February 2023. 42 min

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.

5. Blood Feud of Gresham Castle

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. 9 February 2023. 42 min

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.

6. The Boneyard of Arizona

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. 16 February 2023. 42 min

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.

7. Nevada's Mystery Marking

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. 23 February 2023. 42 min

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.

8. Ghost Ship of Ireland

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. 2 March 2023. 42 min

Satellite images reveal a mysterious vessel that suddenly appears marooned on a remote stretch of Ireland's southern coast; experts investigate and uncover a bizarre journey near the Bermuda Triangle that resulted in a US Coast Guard interception.

9. Secrets of Biosphere 2

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. 9 March 2023. 42 min

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.

10. Arctic Hunters of Norway

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. 16 March 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.