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?

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

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

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

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

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

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

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

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

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

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

An incredible travel through space and time between the walls of the Paris Observatory, which is cel...

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

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

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

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

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

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

Documentary which uses the latest, most detailed imagery to reveal the monthly life cycle of the moo...

Follow three rocket and satellite companies – Astra Space, Rocket Lab, and Planet Labs – and the que...