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.

A documentary telling the remarkable human story of Stephen Hawking. For the first time, the personal archives and the testimonies of his closest family reveal both the scale of Hawking's triumphs and the real cost of his disability and success.

A look at the state of the global environment including visionary and practical solutions for restoring the planet's ecosystems. Featuring ongoing dialogues of experts from all over the world, including former Soviet Prime Minister Mikhail Gorbachev, renowned scientist Stephen Hawking, former head of the CIA R. James Woolse

In a studio setting, Stephen Hawking, Arthur C. Clarke and Carl Sagan (who joins them via satellite) discuss the Big Bang theory, God, our existence as well as the possibility of extraterrestrial life.

A compilation of clips and interviews, originally broadcast on BBC2's Red Dwarf Night, celebrating the show's 10th anniversary in 1998, and subsequently included on the DVD release of Red Dwarf series II.

Twenty years after A Brief History of Time flummoxed the world with its big numbers and black holes, its author, Stephen Hawking, concedes that the "ultimate theory" he'd believed to be imminent - which would conclusively explain the origins of life, the universe and everything - remains frustratingly elusive. Yet despite his failing health and the seeming impossibility of the task, Hawking is still devoted to his work; an extraordinary drive that's captured here in fleeting interview snippets and footage of the scientist sharing a microwave dinner with some fawning PhD students. Though the pop-science tutorials that dapple the first of this two-part biography are winningly perky, Hawking, alas, remains as tricky to fathom as his boggling quantum whatnots

How secure is our future? This eye-opening documentary -- which uses computer-generated imagery to illustrate an asteroid collision, black holes and worldwide plagues, among other threats -- explores seven scenarios that could spell the end of the world. Interviews with noted scientists examine the extent of preparations for these cataclysmic events and what's being done to save future generations from extinction.

A distance planet in a distant star system has a plan: to construct highly advanced miniature robots to send to a wide number of planets in need of an evolutionary boost.

The dynamic meeting of solid science and futuristic simulation culminates in a dramatic exploration to another inhabited planet seven light years away. Alien Planet creates a realistic depiction of creatures on another world, where life is possible, if not provable, according to scientists' theories. Take this fascinating journey created by state-of-the-art animation and photo-realistic effects.

Artist and writer Matt Collings takes the plunge into an alien world of equations. He asks top scientists to help him understand five of the most famous equations in science, talks to Stephen Hawking about his equation for black holes and comes face to face with a particle of anti-matter. Along the way he discovers why Newton was right about those falling apples and how to make sense of E=mc2. As he gets to grips with these equations he wonders whether the concept of artistic beauty has any relevance to the world of physics.