Few words are needed for this video, it's just a great reminder that we're all in this together. Carl Sagan commissioned the "Pale Blue Dot" photo from NASA in 1990. Voyager 1, having just completed its primary mission and on its way out of the solar system, was turned around to photograph the Earth. At the time, Voyager 1 was approximately 3.7 billion miles away.
If you'd like to explore books and videos about Carl Sagan and his work, click here .