About
At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the Earth. Several international teams of scientists have been competing in a frantic race to detect it, in uncharted territories, far beyond Neptune. The recent discovery of several dwarf planets, with intriguing trajectories, have put astronomers on the trail of this mysterious planet. Why is this enigmatic planet so difficult to detect? What would a ninth planet teach us about our corner of the universe? Could it help us unlock some of the mysteries of our solar system?
Director
Producer
Music
Raphaël Didjaman
Studio
ARTE, Look at Sciences
Original Title
À la Recherche de Planète 9
Original Language
French
Where to Watch
Region
Magellan TV
Stream included
Included
Xive TV Documentaries Amazon Channel
Stream included
HD
Included
Prices last updated September 26, 2026. Pricing and availability may vary by region.
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