"...Before Wednesday, the count of confirmed planets outside the solar system stood at 519. That means Kepler could triple the number. And those findings are from Kepler's scanning of just one four-hundredth of the night sky, so the actual number of planets out there is presumably hundreds of times greater, Borucki said...."

"1/400th of the night sky" so, presumably, at least 400 x as many...the point is, 'we aren't alone'....

IF there were any Justice, Jack Vance would have won the Nobel Prize in Literature!