In that moment, all of humanity was captured in a ghostly fragment of a pixel swimming through an unrelenting sea of darkness — a "Pale Blue Dot" lost in a void. Carl Sagan — the astronomer ...

F or most of human history, Earth has been known as the “Pale Blue Dot,” a term popularized by astronomer Carl Sagan when referring to the iconic 1990 image taken by Voyager 1. But for ...