EDWARDS, CA - MAY 22:  A plush dice is placed in the cockpit of a Sierra Nevada Corporation's Space Systems Dream Chaser prototype space-access vehicle at NASA's Dryden Flight Research Center on May 22, 2013 in Edwards, California. The engineering test article will begin testing of its flight and runway landing systems at Edwards Air Force Base through summer into fall. The space vehicle is designed to provide crew and cargo transportation services into low-Earth orbit, including to and from the International Space Station. (Photo by Kevork Djansezian/Getty Images)