Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?

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

A strange story from Somerset, England about a filmmaking farmer and the inspiring legacy of his lon...

Documents the cultural and ecological impacts of coal stripmining, uranium mining, and oil shale dev...

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...

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

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

Hacking at Leaves documents artist and hazmat-suit aficionado Johannes Grenzfurthner as he attempts ...

At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the...

Former major league baseball player Moe Berg lives a double life working for the Office of Strategic...

Ancient pharaoh Akhenaten was almost lost to history. Canadian archaeologist Donald Redford, who unc...

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

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

Thanks to new excavations in Mauritius and Madagascar, as well as archival and museum research in Fr...