Skip to content

What on Earth?

Season 12 · 10 episodes · Jan 12, 2023

  1. What on Earth? season 12 episode 1 still

    Episode 1

    Bullseye in the Sky

    Jan 12, 2023

    Satellite capture a bizarre pattern obscuring an eastern Atlantic island.

  2. What on Earth? season 12 episode 2 still

    Episode 2

    Mystery of the Fallen Star

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

  3. What on Earth? season 12 episode 3 still

    Episode 3

    Indiana's War Factory

    Jan 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.

  4. What on Earth? season 12 episode 4 still

    Episode 4

    Turkey's Lost Terror Dome

    Feb 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.

  5. What on Earth? season 12 episode 5 still

    Episode 5

    Blood Feud of Gresham Castle

    Feb 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.

  6. What on Earth? season 12 episode 6 still

    Episode 6

    The Boneyard of Arizona

    Feb 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.

  7. What on Earth? season 12 episode 7 still

    Episode 7

    Nevada's Mystery Marking

    Feb 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.

  8. What on Earth? season 12 episode 8 still

    Episode 8

    Ghost Ship of Ireland

    Mar 2, 2023

    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. What on Earth? season 12 episode 9 still

    Episode 9

    Secrets of Biosphere 2

    Mar 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.

  10. What on Earth? season 12 episode 10 still

    Episode 10

    Arctic Hunters of Norway

    Mar 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.