S7 episodes 1-19 streaming until 4 Jan 2026
What On Earth?
Watch all available episodes of What On Earth?
Discover a massive tsunami hundreds of feet high that never touches land and an image from space may have revealed the location of the Garden of Eden.
Episode 2Discover an island the size of Manhattan that vanishes without a trace and a lost city in the heart of the Amazonian jungle.
Episode 3First seen from space in 1965, the Eye of the Sahara is a beautiful 25-mile structure, but how it formed remains a mystery.
Episode 4NASA astronaut Mike Barratt describes photographing a strange ring in the ice on the world's oldest lake from the International Space Station.
Episode 5A possible smoke screen over North Korea worries military analysts while an amateur archaeologist makes an extraordinary discovery.
Episode 6Images of Earth show cities glowing, while wilderness remains dark. Why is the Australian outback illuminated like a vast city?
- 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
- StudioSky History
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- How many seasons of What On Earth? are there on NOW?
- There are 7 seasons of What On Earth? available to stream on NOW.