Meet Michael Brown The Man Who Killed Pluto
NEWSWEEK: Astronomers can see galaxies billions of light years away. What took you so long to find Sedna? Brown: Astronomers now have these fabulous telescopes for looking at ever-fainter objects, but to find things close by, in our own solar system, you have to look for things that move. If you take a picture of the sky, and if you don’t come back an hour later and take another picture, you don’t realize that one thing you think is a star, isn’t....