Carl Sagan, the astronomer of the people strived to untangle the subtle complexities of modern physics and present them to the everyday audience. He believed that in a world where knowledge was available freely to every person seeking it. This is an excerpt from his famous speech “The Pale Blue Dot” when Nasa, upon a suggestion from Sagan, presented the world with the furthest photograph taken of the Earth. Animated by Vishal Varghese