NEW HORIZONS Load Reactor New Horizons/Atlas V Expanded View New Horizons Spacecraft/ Star 48B Third Stage 5-meter Short Payload Fairing (68 feet long) Payload Adapter Centaur Conical Centaur Upper Stage Interstage Adapter Single RL10 Engine Centaur Interstage Adapter (12 foot diameter) CCB Cylindrical Interstage Adapter Centaur Aft Stub 5-meter Payload Fairing Adapter Boattail Solid Rocket Boosters (5) Common Core Booster™ (CCB) Aft Transition Skirt/Heat Shield RD-180 Engine 26 NASA’s First Mission to Pluto and the Kuiper Belt