The Experience We Share — Meaning, Life, and the Universe Looking Back
On February 14, 1990, Voyager 1 was about six billion kilometres from the Sun, beyond the orbit of Neptune and leaving the planets behind, when its camera was turned around for one last series of pictures. Carl Sagan had pushed for the shot for years, against engineers who saw no scientific value in it and some risk to a camera pointed so close to the Sun. In the frame that came back, Earth occupies less than a pixel: a point of pale light caught in a scattered sunbeam. Nothing could be measured in the Pale Blue Dot that had not been measured better from closer up. The picture existed to be seen, and then to be shown. …