To avoid trampling historical "World War I trench warfare tunnels" in Belgium archaeologists were brought to clear a path for the construction of a pipeline.
What happened to a quarter quadrillion krill and what does it mean for some of our favorite animals; penguins, whales and seals. Scientists are determined to find out if we should relax, worry or panic.
The earthquake that rocked Nepal in April 2015 is examined. Included: why it was so devastating; how the victims are rebuilding; and whether another earthquake is in the offing.
An examination of how memory works. Included: research being done by neuroscientists, who've studied everyone from an 11 year old with extraordinary recall to a woman who had false memories implanted in her mind.
Murdered more than 5,000 years ago, Otzi the Iceman is the oldest human mummy on Earth. Now, newly discovered evidence sheds light not only on this mysterious ancient man, but on the dawn of civilization in Europe.
Machines with human-like capabilities have long been the stuff of science fiction. Until now. Meet the world's most advanced humanoid robots as they leave the lab, battle real-world challenges, and endeavor to become part of our everyday lives.
They were pioneering warriors, expert seafarers, and colonists of the North Atlantic realm. The Vikings even claimed in their sagas to have reached America. Now, renowned archaeologist Sarah Parcak uncovers new clues about their legendary expeditions and settlements.
The work of scientists to determine the cause of Alzheimer's disease is detailed. Included: major drug trials aimed at discovering therapies to slow and even prevent the disease.
From Yellowstone to the Yukon, to Southern Africa's elephant highways stretching across five nations, explore how newly established wildlife corridors may offer a glimmer of hope to some of our planet's most cherished-but endangered-species.
Investigate the psychology of a terrorist and examine how radical organizations have grown to make use of modern propaganda and social media tools in order to cultivate an army of self-radicalized killers.
Follow an army of engineers and designers as they tackle the complex challenge of building Crossrail, a massive new subterranean railway deep beneath the streets of London.
This program explains the formation, chemistry, variations and allure of the most notable gemstones; diamonds, emeralds, sapphires, rubies, jade and opals.
An examination of fossil fuels. Included: modern-day oil prospecting in California; and a utility company that struggles to keep the lights on during hot summer days.
