From 6 billion kilometres out, Voyager 1 looked back in 1990 and found Earth reduced to a pale blue speck smaller than one pixel, a shot Carl Sagan had spent years fighting for (opens in new tab)

From 6 billion kilometres out, Voyager 1 looked back in 1990 and found Earth reduced to a pale blue speck smaller than one pixel, a shot Carl Sagan had spent years fighting for In 1990, NASA’s Voyager 1 spacecraft turned its cameras back toward the inner solar system and photographed Earth from about six billion […]