The search for climate change solutions requires passion, resources and a sense of urgency -- three qualities Bill Gates clearly possesses. Bill has founded a start-up called TerraPower. After extensive computer modelling, the idea showed promise. Its new reactor greatly reduced the chance of human error. Fuelled by depleted uranium, the travelling wave reactor functions like a slow-burning candle and requires refuelling only once every decade. Bill and his team believed they had finally developed the ideal energy source, a reactor that was clean, efficient, and most importantly, safe.

The final episode of this series looks at what happens to the brain when someone uses psychedelic drugs. It looks at how psychedelic drugs may be useful in dealing with anxiety in cancer survivors and serious depression. It explores the history of psychedelics and examines early medical experimentation with the drug. It also discussed why psychedelics were banned and examines how they affect the brain.

In the fall of 2016, an army of over 100,000 Iraqi soldiers and militiamen mobilize to liberate Mosul, Iraq's second largest city, from the clutches of the Islamic State. Ali Mula, an Iraqi journalist, joins this army of uneasy allies--including Sunnis, Shiites, Christians and Kurds--to find out if they can put aside their sectarian differences and finally free their country from the scourge of ISIS.
Along the way to Mosul, Ali encounters an unforgettable group of characters including a Sunni tribal leader who calls himself 'the Crocodile', a female militia leader avenging the death of her husband, a canny, Iranian-backed militia leader, a lawyer-turned-warrior, an elite band of ISIS killers, and refugees who survived the brutality of ISIS occupation. As he nears the end of his journey, Ali meets face-to-face with a die-hard ISIS prisoner who reveals the truth behind his nefarious organization.

This acclaimed docudrama is a chronicled look at the fall of the Romanov dynasty in Russia. When social upheaval sweeps Russia in the early 20th century, Czar Nicholas II resists change, sparking a revolution and ending his reign.
In the first episode, Czar Nicholas II takes the Russian throne in 1894 and rejects modern ideas to embrace a pure autocracy. Tragedy marks his coronation day.

NASA is on a mission to send humans to Mars within just 15 years, but to reach this next frontier of space exploration, experts must discover new technology and cutting-edge science that protects astronauts from the Red Planet's deadliest killers.

Stars helped create us, building and spreading the ingredients for life to develop. But there will definitely be a point in the future when, in the future when, you look up, you will no longer be able to see stars.
For billions of years, stars brought life to the universe. Now, they're dying out in a star apocalypse. What's causing the die-off, and what happens to life when the lights go out?