Count down through the world's top 20 YouTube clips featuring brave human guinea pigs including: the US guy who flips cars and the Russian roof to roof jump.

Count down through the world's top 20 YouTube clips featuring brave human guinea pigs including: the US guy who flips cars and the Russian roof to roof jump.

From volcanoes and galactic mega storms to mineral rich asteroids and comets. Discover how these titanic forces and extraordinary phenomenon could reveal clues about the origins of life on Earth and elsewhere in the universe.

From volcanoes and galactic mega storms to mineral rich asteroids and comets. Discover how these titanic forces and extraordinary phenomenon could reveal clues about the origins of life on Earth and elsewhere in the universe.

Adam Savage delves into an unpredictable world, taking on the most absurd challenges only he could dream up! He engineers inventive builds to discover new information.

Adam Savage delves into an unpredictable world, taking on the most absurd challenges only he could dream up! He engineers inventive builds to discover new information.

Treasure hunter Darrell Miklos attempts to decode and follow the 'treasure map' created by his boyhood idol, former NASA astronaut Gordon 'Gordo' Cooper.

Treasure hunter Darrell Miklos attempts to decode and follow the 'treasure map' created by his boyhood idol, former NASA astronaut Gordon 'Gordo' Cooper.

Ever wondered how everyday items are made? More common items are put under the microscope to find out.