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?

In October 2023, a European research team succeeded in generating an enormous amount of energy from ...

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

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

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

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

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

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

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

Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Ea...

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

European Space Agency astronaut Alexander Gerst and his NASA colleague Reid Wiseman are launched int...

A mechanic discovers the fossil of a huge carnivorous dinosaur, unleashing a war between scientists,...

The first feature from Alison McAlpine is a dialogue with the heavens—in this case, the heavens abov...

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

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

The sun is the miracle that makes everything possible - but also the greatest danger. For the first ...