Michael Wood travels through Syria and Iraq to uncover the story of Alexander the Great's decisive battle against the might of the Persian Empire in 331 BCE. Ancient writers agreed that it was fought somewhere near the city of Irbil in northern Iraq, but the exact location has never been discovered. Using dramatic new finds in the UK - a cuneiform clay tablet in the British Museum and a papyrus dug up in Egypt - Michael sheds new light on the course of events. Then to reconstruct the campaign, he follows Alexander's route through Damascus and Aleppo to the river Euphrates in Syria and travels into Northern Iraq with the British and US military.

Luc Bachelot, a researcher with the CNRS, has been directing since 1994 the French archeological mission at Tell Shioukh Faouqâni in Syria and coordinates the excavations that are carried out there.

In the Formative Period 4,000 years before the Incas and the arrival of the Conquistadors, Peru’s earliest civilizations - the Chavín, Caral, Ventarrón, Sechin, Cupisnique, and Cajamarca cultures - built centers of learning and technological achievements, including the largest work of hydrological engineering in the ancient Americas: the Cumbemayo canals.

Starting from the colonial city of Trujillo, this documentary reveals natural and archeological features along the north coast of Peru, where the Moche culture thrived from the 1st Century BC to the 6th Century AD.

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied recently. What if Prehistoric Man were clever enough to develop in depth scientific knowledge? As unlikely as it may seem, new data tend to prove that Prehistoric Man actually invented Astronomy!

In this gripping investigation, archaeologist Pepi Papakosta is on a hunt for Alexander the Great's lost tomb, and she makes an extraordinary discovery.

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?

Faced with the risk of collision with the Earth, space agencies are refining their observations on the course of asteroids in our galaxy. A documented state of the art of the current programs.

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - among nature's more spectacular phenomena – are a veritable obsession. The film follows 4 of them as they travel incredible distances to witness the last total eclipse of the millennium as it sweeps eastward across Europe to India. At various points along the way enthusiasts Alain Cirou in France, Paul Houde in Austria, Olivier Staiger in Germany and Debasis Sarkar in India offer their impressions of the historic event.

At Arecibo Observatory in Puerto Rico, “Near Earth Asteroids: Dr. Anne Virkki” tells the story of Research Scientist Anne Virkki and her ongoing studies on asteroids and their threat to humanity. Originally from Finland, Anne Virkki shares her experience in education as well as her studies on asteroids, including her work hunting and tracking asteroids headed for Earth.

What is true and what is false in the hideous stories spread about the controversial figure of the Roman emperor Gaius Julius Caesar Augustus Germanicus (12-41), nicknamed Caligula? Professor Mary Beard explains what is accurate and what is mythical in the historical accounts that portray him as an unbalanced despot. Was he a sadistic tyrant, as Roman historians have told, or perhaps the truth about him was manipulated because of political interests?

A team of international scientists attempt to document the first-ever image of a black hole.