Episode 1
Secret Soviet Spacecraft
42m
Satellites capture a bizarre industrial complex in desert of Kazakhstan.
Where to watch What on Earth?
TV series
What on Earth?
2015TV-PG12 seasons6.5 / 10
Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects that seem to make no sense & phenomena that defy explanation. Such images force the question, what on Earth is that?
Availability
Not streaming in United States
What on Earth? premiered February 10, 2015. We don't have a confirmed streaming, rental or purchase option yet.
Synopsis
Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects that seem to make no sense & phenomena that defy explanation. Such images force the question, what on Earth is that?
Season 11 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Range of Nazi Evil
42m
Satellites capture dozens of parallel lines hidden in Polish woodlands.
Where to watch What on Earth?
Episode 3
Doomsday Lair of Greece
42m
Satellites capture bizarre structures on the Greek island of Kefalonia.
Where to watch What on Earth?
Episode 4
Mystery of the Welsh Mine
42m
Satellites capture ruins amid bizarre structures on a Welsh mountaintop.
Where to watch What on Earth?
Episode 5
Riddle of Sardinia Tower
42m
Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.
Where to watch What on Earth?
Episode 6
Circles of the High Kings
42m
Satellite images capture two conjoined circular structures embedded in the lush and rolling landscape of Ireland; experts investigate and uncover an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.
Where to watch What on Earth?
Episode 7
Russia's Lightning Lab
42m
Drone images capture oddly shaped towers in a forest clearing near Moscow.
Where to watch What on Earth?
Episode 8
Poland's Secret Nazi Compound
42m
Satellites capture a series of zigzagging patterns in Polish woodlands.
Where to watch What on Earth?
Episode 9
Holes of Dead Sea Destruction
42m
Drone images capture enormous holes scattered along the Dead Sea coastline.
Where to watch What on Earth?
Episode 10
Ancient Rome's El Dorado
42mfinale
Satellites capture bizarre markings etched deep in the mountains of Spain.
Where to watch What on Earth?Episode information updated Sep 16, 2026
Available now in United States
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More about What on Earth?
Cast
Steven KearneyNarrator
Andrew GoughSelfProduction details
- Status
- Returning Series
- Series type
- Documentary
- Episodes
- 131
- Original language
- English
Networks & production
ScienceUnited States- Wag TV
Themes
satellite imagery