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?

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

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...

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

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

For thirty years, NASA's Hubble Space Telescope has discovered new alien worlds, black holes, and th...

Nowadays we associate Johannes Kepler with his famous laws of planetary motion. But the history of h...

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

Although a real awareness of the populations is underway - the multiplication of natural disasters a...

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

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