The spacecraft was a long way from home. I thought it would be a good idea, just after Saturn, to have them take one last glance homeward. From Saturn, the Earth would appear too small for Voyager to make out any detail. Our planet would be just a point of light, a lonely pixel hardly distinguishable from the other points of light Voyager would see: nearby planets, far off suns. But precisely because of the obscurity of our world thus revealed, such a picture might be worth having. It had been well understood by the scientists and philosophers of classical antiquity that the Earth was a mere point in a vast, encompassing cosmos - by Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space
https://www.youtube.com/watch?v=m-0H4HOATOM
https://www.youtube.com/watch?v=m-0H4HOATOM
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