Where the Wind Things Are

摘要

Twenty years ago, the existence of a distant wilderness beyond Neptune-seeded with tiny planets, dormant comets, and bits of ice and rock -was mere conjecture. There was Pluto, discovered practically by luck in 1930, and that was it. Astronomers photographed squares of the night sky and compared the images to see if anything was moving, but either their technology was not good enough, or they were searching in the wrong place. Or there was nothing more to find.