Science

This program covers a number of advanced topics. Understand the use of water to vary reactor power, as well as different methods of mining uranium, and witness a specific example of a fission reaction.

Nuclear power produces almost a fifth of the world's electricity. Supporters say it's safe, cheap and - best of all - the answer to global warming. Critics say it's not safe or cheap, and it won't really help with the global warming problem. So who's right? This program presents the arguments for and against, with relevant background information.

Monarch butterflies migrate and hibernate over the winter.

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Conspiracy theorists insist the apocalypse will arrive in 2012, based on the predictions of ancient Mayan astronomers. But no matter what year it is, the question remains: How will it happen? Will the apocalypse come from the earth's core, the skies, or the depths of space? Could the end of all life on Earth begin with a rogue asteroid or gamma rays from nearby stars?

Planet Ocean captures extraordinary images of our remarkable oceans—the source of all life on our planet.

Filmed by directors Yann Arthus-Bertrand and Michael Pitiot, along with an outstanding team of international underwater cinematographers in partnership with OMEGA and with the scientific support of Tara Expeditions.

The Ross Sea, Antarctica is the most pristine marine ecosystem on Earth. Scientists describe it as a 'living laboratory', a place that can teach us about the workings of all marine ecosystems. But the fishing industry recently found its way to the Ross Sea, targeting Antarctic toothfish and, unless fishing is stopped, the natural balance of the Ross Sea will be lost forever.

Humans have long regarded the world's oceans as vast and inexhaustible. Now, we have learned otherwise.

There is a revolution happening in the farm fields and on the dinner tables of America, a revolution that is transforming the very nature of the food we eat. THE FUTURE OF FOOD offers and in-depth investigation into the disturbing truth behind the unlabeled, patented, genetically engineered foods that have quietly filled grocery store shelves for the past decade.

How do you get a genius brain? Is it all in the genes? Or is it hard work?

EINSTEIN'S BRAIN How does the anatomy of David Pogue's brain measure up to one of the greatest brains of all time? With access to rare medical slides and photographs of Einstein's brain, researchers seek out the biological roots of his genius.

Magic and the Brain Are the secrets behind the world's greatest magic tricks actually wired into the human brain? Eccentric magicians Penn and Teller and Las Vegas trickster Apollo Robbins team up with neuroscientists to reveal how our brains process visual information. Can you really believe your own eyes?