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?

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

214 million years ago a gigantic meteorite broke up and impacted Earth. 65 million years ago, the im...

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

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

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...

Based on the famous Gustav Holst musical suite, this musical film takes watchers on a magnificent jo...

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive ...

Since the summer of 2020, boats along the Atlantic coast from the Strait of Gibraltar to the Bay of ...

Discovered about twenty years ago, the immense masses of water vapor that fly over the Amazon, calle...

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in ...

For over three decades, NASA and an international team of scientists and engineers pushed the limits...

Oliver is a chimpanzee who not only can walk upright, but does of his own accord. For years there ha...

A docudrama depicting a hypothetical nuclear attack on Britain. After backing the film's developmen...

They have no roots, no seeds, no flowers, but mosses show immense survival capacities and can suspen...

This movie explores the saga of the telescope over 400 years - the historical development, the scien...

Part of the Almost Famous series. Jocelyn Bell was a graduate student at Cambridge in 1967 when she ...

This documentary delves into the mysteries surrounding the Neanderthals and what their fossil record...