Foto de stock - 07/02/1997 ___ Workers from the Johns Hopkins University’s Applied Physics Laboratory APL install the Cosmic Ray Isotope Spectrometer CRIS on the Advanced Composition Explorer ACE spacecraft in KSC’s Spacecraft Assembly and Encapsulation Facility_2 SAEF_2. From left, are Al Sadilek, Marcos Gonzalez and Cliff Willey. CRIS is one of nine instruments on ACE, which will investigate the origin and evolution of solar phenomenon, the formation of the solar corona, solar flares and the acceleration of the solar wind. ACE was developed for NASA by the APL. The spacecraft is scheduled to be launched Aug. 21 aboard a two_stage Delta II 7920_8 rocket from Space Launch Complex 17, Pad A