Analyse @WIRED's tweets
Happy #EarthDay! See that tiny bright dot in the orange sunbeam? That's Earth…from 4 billion miles away. Voyager 1 took this photo on its way out of our solar system. The spacecraft turned back to face Earth and snapped the pic now known as Pale Blue Dot https://t.co/7ZfD7TcoFA https://t.co/BWxTNs3fmV