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What on Earth?

Season 6 2019

  • 2019-06-07T10:00:00+08:00 on Science Channel
  • 45 mins
  • 6 hours, 45 mins (9 episodes)
  • United States
  • English
  • Documentary

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?

9 episodes

6x01 World's Deadliest Threats

  • Season Premiere

    2019-06-07T10:00:00+08:00 — 45 mins

The world's most dangerous threats are in top-secret locations all over the planet, and using cutting-edge technology, experts reveal the truth behind these sinister mysteries from space.

6x02 Monsters of Diamond Desert

  • 2019-06-14T10:00:00+08:00 — 45 mins

An abandoned ghost town in a remote desert with a dark past. When a strange facility is spotted in Russia, experts investigate if it's hiding evidence of alien life. Cutting-edge tech reveals new clues to these sinister mysteries from space.

6x03 North Korea Death Star

  • 2019-06-21T10:00:00+08:00 — 45 mins

When satellites spot a mysterious structure in North Korea, experts investigate if this sinister evidence points to a looming nuclear threat, and using cutting-edge tech, they reveal dark secrets from this strange place.

6x04 Aliens of the Infinity War

  • 2019-06-28T10:00:00+08:00 — 45 mins

When a strange pattern appears in a field, experts wonder if its an extraterrestrial response to a message sent to an alien star cluster in 1974, and using cutting-edge science, they uncover its true origin.

6x05 The Cave to Hell

  • 2019-07-12T10:00:00+08:00 — 45 mins

When a sinister cave is discovered in a remote corner of Iceland, experts uncover a secret underworld tunneling to unknown depths, and using cutting-edge tech, they investigate if this strange place could hold secrets of alien worlds.

6x06 Terror of the Ice Snake

  • 2019-07-19T10:00:00+08:00 — 45 mins

In the white ice of Antarctica, satellites discover a mysterious trail of sinister black objects, and when experts discover that it's moving, they use cutting-edge tech to investigate who or what is behind this strange phenomena.

6x07 Curse of Genghis Khan

  • 2019-07-26T10:00:00+08:00 — 45 mins

When an strange structure is discovered in the Gobi Desert, experts investigate if this mysterious site could reveal the whereabouts of lost treasure, which might change everything we know about Genghis Khan and the Mongol warriors who once lived here.

6x08 The King at Roswell

  • 2019-08-02T10:00:00+08:00 — 45 mins

When a strange, red plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft has Nazi or extraterrestrial origins, and their investigation reveals new secrets about one of America's most famous faces.

6x09 Treasures of Monster Graveyard

  • 2019-08-09T10:00:00+08:00 — 45 mins

At a mysterious site in the Gobi Desert, experts have discovered a monster graveyard, and this groundbreaking find contains the treasures of the alien beasts that once lived in this strange world.