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?

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

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...

A differing group of people – a wildlife photographer, a marine biologist, a whale rescuer, and a cr...

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...

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

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

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

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

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

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

The first American space station Skylab is found in pieces scattered in Western Australia. Putting t...

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

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