How many small planets (asteroids?) do you think they've now discovered way beyond the orbit of Pluto and Neptune? 840, apparently, which does seem a lot to me.
And one will be visited next year by that New Horizons probe that went past Pluto last year.
Speaking of that probe, there was a talk by the NASA folk who worked on it on Radio National last week (in the Big Ideas series. Here's a link to the podcast.) It was very interesting.