Just 6 miles across, P5 is Pluto's smallest moon yet
(Newser) -
It's not a chapter in the Twilight series, but it is a new moon: astronomers have discovered a tiny fifth satellite revolving around distant Pluto, reports Space.com . One year after P4 was announced, now the Hubble Telescope has spied a fifth moon. Pluto's biggest moon, Charon, is...