Extras
Dial in to the fascinating history of the smartphone.
Franklin Chang-Diaz demonstrates the energy required to launch a rocket into space.
Blast off into history to see how rockets originated not in the sky, but in a cave.
In 1886 Karl Benz has his patent accepted for what is regarded as the first automobile.
Go for a ride through the 9,000-year history of the ultimate freedom machine: the car.
The invention of the rubber powered plane inspires the famous Wright brothers.
A legendary artist studies the bodies of flying animals in extraordinary detail.
In 1923, Edwin Hubble began the manual process of photographing the Andromeda Nebula.
Check out the history of robots and learn how they are becoming a part of everyday life.
Take to the sky with the dreamers whose work gave humans the ability to fly.