A photograph of the whole earth from space will have great implications for humanity.

Stewart Brand : writer
"And I figured a photograph—a color photograph—would help make that happen. There it would be for all to see, the earth complete, tiny, adrift, and no one would ever perceive things the same way. But how to accomplish this? How could I induce NASA or the Russians to finally turn the cameras backwards? We could make a button! A button with the demand "Take a photograph of the entire earth." No, it had to be made a question. Use the great American resource of paranoia. "Why haven't we seen a photograph of the whole Earth yet?" - Brand, Source: "Photography Changes Our Relationship to Our Planet"