S7 episodes 1-20 streaming until 4 Jan 2026
What On Earth?
Watch all available episodes of What On Earth?
Investigate the haunting history of the town that time forgot, unexplained circles in the New Mexico desert and a possible clue to extra-terrestrial life in the Arctic.
Episode 2
Investigate alien-like metal monsters coming from the sea, a war between 30 million crabs and an army of killer ants, and the white wall of death from which there is no escape.
Episode 3Explore the mystery of the stone giant and the vanishing desert kingdom, and nukes and spooks in the Middle East. Plus, Harry Potter's Hedwig reveals her dark side.
Episode 4Learn about the mystery of the vanishing lake, toxic hell storms, CIA-trained killer monks and polar bears that stalked stricken World War II heroes.
Episode 5Explore the mystery of a sunken fleet in Maryland, weird Arctic holes that NASA cannot explain and strange structures in the desert close to Area 51.
Episode 6Learn about the hunting of Jack the Ripper from space, the battle of the big guns in the land of the Bible, the clash of the mega-beasts, and a visitation from another galaxy.
Episode 7Explore a shipwreck found in the middle of the desert, learn about the German aerial terror of WW1 and traverse through a ghost town still stalked by a serial killer.
Episode 8Investigate an electric blue mountain and the gateway to hell, the railroad of death and the town-swallowing Texan abyss.
Episode 9Witness a prehistoric ghost in Ireland, a machine that can see back in time and a giant pentagram in the Canadian snow.
Episode 10Learn about Nazis and cannibals in the Black Forest, Russia's tectonic terror weapon and Jungle guerrillas on the warpath.
Episode 11Discover terrifying new images of a blob swallowing a city, spy ships attacking America, skydiving cannibal spiders and the radioactive killer fly factory.
Episode 12Look inside America's top-secret apocalypse pyramid, explore China's hidden terror camps and see Iran's hidden terror-crater.
Episode 13Discover the desert ghost town of untold riches and unspeakable horrors, the lost empire of South America and hear mystery noises that haunt a city.
Episode 14Explore Ragnarok and the chambers of horror, see the penguin apocalypse and attack of the mega-mice and catch a family holiday - North Korean style.
Episode 15Uncover an atomic tomb, witness multi-million dollar wacky races and discover the country on fire.
Episode 16Find the billion-dollar horde buried deep beneath the deserts of Utah, discover the massacre so horrific it was captured from space and see the ice cave of the Norse fire God.
Episode 17Decode the mysterious Arizona desert cypher, discover the lair of the war elephant and beware the zombie village.
Episode 18Witness unexplained shapes in the deserts of Genghis Khan, see the mystery fleet of ice planes at the end of the Earth and look down at Kim Jong Un's terror factory from space.
Episode 19Discover the link between Nazis in New Mexico and a mystery craft in Roswell, explore Australia's underground labyrinthine abyss and decode the cypher of Atomic Island.
Episode 20Check out America's 1500 feet tall atomic tower, uncover the lost village of the damned and embark on a hunt for dinosaur fossils... from outer space?
Show more- About this series
- Science Channel's most watched series reveals Earth as it's never been seen before. Illuminating views captured by more than 4,000 orbiting satellites, `What on Earth?' investigates mysteries from strange geological occurrences to weird man-made structures. Every day, the eyes in the sky uncover new mysterious phenomena, and some defy easy explanation. To search for answers, the series combines modern imaging technology with analysis from military and intelligence professionals as well as leading scientists.
- CrewSusanna Herbert (Director), Bella Falk (Director)
- GenreFeatures, Factual
- Seasons7
- ChannelSky History
You may also like
Bermuda Triangle: Into...
S1-2 streaming
Any questions?
How do I watch What On Earth??- Watch online at NOWTV.com or download the app to watch on the go and start streaming What On Earth?. View the full list of supported devices.
- Where can I watch What On Earth??
- You can watch What On Earth? instantly on NOW. Join in and start streaming.
- How many seasons of What On Earth? are there on NOW?
- There are 7 seasons of What On Earth? available to stream on NOW.