<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="font-family: Helvetica; "></span><span style="letter-spacing: 0.0px">* <b>New Horizons</b> - October 16, 2012</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px"><b>At Pluto, Moons and Debris May Be Hazardous to New Horizons</b></span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px"><b>Spacecraft Aims to Steer Clear of 'Debris Zones' During 2015 Flyby</b></span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"><b></b></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">"NASA's New Horizons spacecraft is now almost seven years into its 9Ω-year journey across the solar system to explore Pluto and its system of moons. Just over two years from now, in January 2015, New Horizons will begin encounter operations, which will culminate in a close approach to Pluto on July 14, 2015, and the first-ever exploration of a planet in the Kuiper Belt.</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">As New Horizons has traveled through space, its science team has become increasingly aware of the possibility that dangerous debris may be orbiting in the Pluto system, putting the spacecraft and its exploration objectives into harm's way.</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">"We've found more and more moons orbiting near Pluto ó the count is now up to five," says Alan Stern, principal investigator of the New Horizons mission and an associate vice president of the Space Science and Engineering Division at Southwest Research Institute (SwRI). "And we've come to appreciate that those moons, as well as those not yet discovered, act as debris generators, populating the Pluto system with shards from collisions between those moons and small Kuiper Belt objects."</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">"Because our spacecraft is traveling so fast ó more than 30,000 miles per hour ó a collision with a single pebble, or even a millimeter-sized grain, could cripple or destroy New Horizons," adds New Horizons Project Scientist Hal Weaver, of the Johns Hopkins University Applied Physics Laboratory (APL), "so we need to steer clear of any debris zones around Pluto."</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; color: rgb(4, 51, 255); "><span style="letter-spacing: 0.0px; color: #000000">Find New Horizons in the iTunes App Store here. (<a href="http://itunes.com/apps/newhorizonsanasavoyagetopluto"><span style="letter-spacing: 0px; ">http://itunes.com/apps/newhorizonsanasavoyagetopluto</span></a>)</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; color: rgb(4, 51, 255); "><span style="letter-spacing: 0.0px; color: #000000"><b>New Horizons gallery</b> <a href="http://pluto.jhuapl.edu/gallery/sciencePhotos/"><span style="letter-spacing: 0px; ">http://pluto.jhuapl.edu/gallery/sciencePhotos/</span></a>.</span></div><div style="margin: 0px; font-size: 12px; font-family: Courier; min-height: 14px; "><span style="letter-spacing: 0.0px"></span><br></div><div style="margin: 0px; font-size: 12px; font-family: Courier; "><span style="letter-spacing: 0.0px">For more information on the New Horizons mission - the first mission to the ninth planet - visit the New Horizons home page: <a href="http://pluto.jhuapl.edu/"><span style="letter-spacing: 0px; color: rgb(4, 51, 255); ">http://pluto.jhuapl.edu/</span></a>.</span></div><div style="margin: 0px; font-size: 12px; "></div></body></html>