Black Holes: The Edge of All We Know

Uncover clues about the origins of our galaxy with a team of astronomers and scientists as they strive to locate a strange presence hidden deep in the core of the galaxy. Learn how this mysterious realm harbors clues to the origin of the world and probes the future course of our galaxy and universe.

Kate Humble and Helen Czerski reveal the inner workings of the sun and investigate why scientists think changes in the sun's behaviour may have powerful effects on our climate.

John Glenn goes on another journey into outer space for tests on how old age is affected there. His whole life is chronicled in this informative documentary, from his first mission above to his experience as a senator and finally, his blast into space at age 77.

Physicist Dr Helen Czerski takes us on a journey into the science of bubbles - not just fun toys, but also powerful tools that push back the boundaries of science.

Just outside Paris, France, inside a high-tech vault, requiring three independently controlled keys, rests a small metallic cylinder about the diameter of a golf ball. Encased within three vacuum-sealed bell jars it may not look like much, but it is one of the most important objects on the planet. It affects nearly every aspect of our lives from the moment we are born, to the food we eat, the cars we drive, and even the medicines we take. The Last Artifact follows the high-stakes race to redefine the weight of the world reveals the untold story of one of the most important objects on the planet. The kilogram, the base unit of mass in the International System of Units, helped send humans to the moon and satellites into space. This small hunk of metal is the object against which all others are measured. Yet over time, its mass mysteriously eroded by the weight of an eyelash. A change that, unbeknownst to most, unleashed a crisis with potentially dire consequences.

Uncover the little-known stories of the first Black pilots, engineers and scientists seeking to break the bonds of social injustice to reach for the stars, including Guion Bluford, Ed Dwight and Charles Bolden among many others.

Thirty distinguished astronomers are visited at their observatories throughout the world in this comprehensive report of astronomical theories, research, and discoveries.

The alarming surge of UFO sightings, alien encounters and military disclosures over the last decade have established a foreboding reality - that in our very near future the human race will be confronted with the presence of a superior Extraterrestrial race. Powerless to resist or combat these beings, we as the human race will be sentenced to our inescapable fate. Will they consider us sentient beings and foster our growth and evolution, or will they have more nefarious intentions?

This shows physicist Stephen Hawking's life as he deals with the ALS that renders him immobile and unable to speak without the use of a computer. Hawking's friends, family, classmates, and peers are interviewed not only about his theories but the man himself.

The story of America's first astronauts, known as the Mercury 7, told through archival news & radio reports, newly transferred & previously unheard NASA mission audio recordings, and more rare & unseen material.

A story about four British scientists who have created a probe which will take a seven year long trip to the largest moon orbiting Saturn, Titan. Designing and building a vehicle that will travel more than 2 billion miles across space is not an easy task as it is shown in Destination Titan. The documentary follows the story behind the creation of a probe that is the culmination of a lifetime endeavor which will be strapped onto what is essentially a giant bomb and hurled out of earths atmosphere on a seven year long journey. will they succeed? This documentary is presented by John Zarnecki and features the famous TV host and astronomer Patrick Moore.