Pluto http://apr.org en Astronomers Discover Fifth Moon Orbiting Pluto http://apr.org/post/astronomers-discover-fifth-moon-orbiting-pluto We now know that Pluto, the dwarf planet formerly known as a planet, has one more moon orbiting it. Using the Hubble Space telescope, astronomers have discovered Pluto's fifth moon.<p>NPR's Joe Palca filed this report for our Newscast unit:<p><blockquote><p>"The new moon is tiny, something between 6 and 15 miles across. It showed up in nine separate images the space telescope made in the last month. The latest image came earlier this week.<p>"In 1978, astronomers found the first and largest of Pluto's moons. It's called Charon. Wed, 11 Jul 2012 21:03:00 +0000 editor 14421 at http://apr.org Astronomers Discover Fifth Moon Orbiting Pluto