Space Telescope SPHEREx Begins Initial Operation Seoul, 13 Mar (ONA) --- The SPHEREx, a space telescope jointly developed by South Korea and the United States, has entered an initial operation stage following its successful launch, Seoul's aerospace agency said. The SPHEREx was launched from Vandenberg Space Force Base in California on SpaceX's Falcon 9 rocket, according to the Korea Aerospace Administration (KASA). The SPHEREx observatory was detached ...