Earth (the dot in the middle) as seen from 3.7 billion miles away by the Voyager 1 spacecraft, on 6/6/1990.

Story has it that Carl Sagan got this idea of turning the Voyager around to get one last snap of earth before it got lost in the vastness of the space. You can read his Ramarajan-Morpheus dialogue here.

I wonder how long will take for humanity to comprehend this level of ludicrity.