THREE MINUTE TEASER

Experts investigate whether someone can really be capable of killing while they're asleep and if sleepwalking is a valid...

In November 2001 an American Airlines Airbus, carrying 260 people, crashed. Was the cause terrorism or engine failure?

The largest airship ever built and the pride of the Nazi government, the Hindenburg met its fatal demise in May 1937.

In 1974 this was the worse crash in aviation history, more than 300 people died.

A pilot struggles to control his passenger jet, at night, over the Red Sea. The plane seems to have a life of its own.

In heavy wind and blinding rain the crew struggle to land a passenger plane.

A lethal combination of pilot error, the devastating effects of severe weather and a dangerous race to keep the plane on schedule.

A revealling look behind the bars of six of America's toughest, meanest and most daunting jails.

There’s one thing harder than being inside one of America’s toughest prisons – being on the outside.

Climate experts continue to examine what effect each rise of 1ºC could have on the world.

Interview with eco-engineer Dick Strawbridge and inventor Jem Stansfield from Planet Mechanics

Now it’s time for Dick and Jem to proudly reveal their new thoroughbred delivery vehicle to the expectant new owners.

The next morning, and the whole bike has to be stripped down to get to the heart of the problem.

Jem’s working on the mounts for the air tanks. They’re coated with carbon fibre, a material that can’t be welded. He...