The life stories of history's greatest minds. From their days as young adults to their final years we see their discoveries, loves, relationships, causes, flaws and genius.

The famed survivalist takes A-list celebrities on journeys into the wildest locations around the world, forcing the stars to push their bodies and minds to the limit to successfully complete the adventure of a lifetime.

Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the origins of space and time.

Host Neil deGrasse Tyson brings together celebrities, scientists and comedians to explore a variety of cosmic topics and collide pop culture with science in a way that late-night television has never seen before. Weekly topics range from popular science fiction, space travel, extraterrestrial life, the Big Bang, to the future of Earth and the environment. Tyson is an astrophysicist with a gifted ability to connect with everyone, inspiring us all to to "keep looking up."

Viewers go deep into an Alaskan winter to meet six tough and resilient residents as they try to stay one step ahead of storms and man-eating beasts to make it through to spring. The closest neighbor to Sue Aikens is more than 300 miles away. Eric Salitan subsists solely on what he hunts and forages. Chip and Agnes Hailstone catch fish for currency in bartering for supplies, and Andy and Kate Bassich use their pack of sled dogs for transportation.

In this anthology series, heroic scientists risk all to deal with deadly outbreaks.

This show combines cold hard science with some of the craziest, most spectacular and painful user generated clips ever recorded. Richard Hammond introduces all manner of mishaps featuring brave, if misguided individuals from around the world and then explains the science behind their failure and humiliation with the use of bespoke animations and super slo-mo cinematography. Every episode features between 50 and 60 clips of misadventure – ordinary folk making extraordinary mistakes. Each week watch stunts involving weightlifting, shooting guns or jumping over cars, that have gone wrong, paused, re-wound, and re-played and analysed to determine exactly what went wrong and why. Richard explains the physics, chemistry and biology at play, then presents forensic details to explain the stupidity that resulted in failure. He’ll look at everything including weight, volume, momentum, combustion and even how the brain operates. This is misadventure explained. This is the Science of Stupid.

Twentysomething Miep Gies didn't hesitate when her boss Otto Frank came to her and asked her to hide his family from the Nazis during World War II. For the next two years, Miep, her husband Jan, and the other helpers watched over the eight souls in hiding in the Secret Annex. And it was Miep who found Anne’s Diary and kept it safe so Otto, the only one of the eight who survived, could later share it with the world as one of the most powerful accounts of the Holocaust.

Science of action is described in several different daily routine activities like sports, stunts, adventures, and things that should not be done at home. This series shows videos of people hurting themselves and explains the science behind them.

National Geographic's Explorer gives viewers special access to the issues of the day.

A mind-bending, thrilling journey exploring the fragility and wonder of planet Earth, one of the most peculiar, unique places in the entire universe, brought to life by the only people to have left it behind – the world’s most well known and leading astronauts.

Bear Grylls is taking it up a level by teaching his celebrity guests essential survival skills that they'll have to master and then prove they can use in a high stress situation.

Octopuses are like aliens on Earth: three hearts, blue blood and the ability to squeeze through a space the size of their eyeballs. But there is so much more to these weird and wonderful animals. Intelligent enough to use tools or transform their bodies to mimic other animals and even communicate with different species, the secrets of the octopus are more extraordinary than we ever imagined.

Fishing is a hard life, and harder with bluefin stocks depleted. In Gloucester, Massachusetts, there's a special breed of fishermen. For generations they've used rod and reel to catch the elusive bluefin tuna. They depend on these fish for their livelihood, and the competition is brutal. Over the next 10 weeks, the most skilled fishermen will set out in the frigid waters of the North Atlantic in hopes of catching the valuable bluefin tuna. When one bluefin can bring in as much as $20,000—they'll do whatever it takes to hook up.

Showcases Cesar Millan as he takes on the most challenging cases yet, treating a host of new canine behavioral issues impacted by well-intentioned but impulsive owners.

Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas and oceans around the world.

Morgan Freeman presents his quest in order to find how most religions perceive life after death, what different civilizations thought about the act of creation and other big questions that mankind has continuously asked.

The maiden crew of the Daedalus spacecraft must push itself to the brink of human capability in order to successfully establish the first sustainable colony on Mars. Set both in the future and in the present day, this series blends scripted elements set in the future with documentary vérité interviews with today’s best and brightest minds in modern science and innovation, illuminating how research and development is creating the space technology that will enable our first attempt at a mission to Mars.

Relive a heroic fight for survival during the Iraq War, when the 1st Cavalry Division from Fort Hood was ferociously ambushed on April 4, 2004, in Sadr City, Baghdad — a day that came to be known in military annals as “Black Sunday.”

An adrenaline-fueled ride through the culture of speculation, innovation and disruption during Silicon Valley’s unprecedented tech boom and subsequent bust in the 1990s. This mostly scripted series weaves in select documentary elements that help tell the true inside story of the internet’s formative years.