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?

Ring of Fire is about the immense natural force of the great circle of volcanoes and seismic activit...

Why did the Roman Empire, which dominated Europe and the Mediterranean for five centuries, inexorabl...

Forensic experts scan Pompeii’s victims to investigate why they didn’t escape the eruption.

Director Dominique Leclerc spent years depending on medical devices for her survival. Then, looking ...

The dynamic meeting of solid science and futuristic simulation culminates in a dramatic exploration ...

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - a...

In the brief period of peace after a terrible war on a far future Earth, an outer-space military aca...

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied rec...

How were the giant stone heads of Rapa Nui – also known as Easter Island – carved and raised, and wh...

The world's leading Egyptologists are on a quest to uncover the secrets of Howard Carter's history-m...

For several decades, geoscientists have been observing that the Earth is changing rapidly due to hum...

Documentary about the Griffith Observatory, shown at their Leonard Nimoy Event Horizon Theater

More and more bacteria are becoming insensitive to antibiotics, not least due to excessive drug cons...

To help visualize the dramatic final chapter in Cassini's remarkable story, NASA's Jet Propulsion La...

What if you could get behind the wheel and race through space? We scale down the Solar System to the...

Three million years ago, camels roamed through Greenland’s endless forests and our ancestors lived i...

Autobots, Decepticons, Predaking and Predacons form an unlikely alliance to battle a resurrected Uni...

In 1872, in the cave of Cavillon in Monaco, archaeologist Émile Rivière (1835-1922) unearthed an app...