SSTL-S1 satellite under construction at SSTL’s Guildford, UK site. Photograph courtesy of SSTL/Kathryn Graham. Surrey Satellite Technology Ltd. (SSTL), located in Guildford, Surrey, in the U.K., has signed a GBP25 million (approximately U.S.$34.8 million) deal with China’s Twenty First Century Aerospace Technology Co. Ltd. (21AT) for the lease of the SSTL-S1 Earth observation satellite. SSTL-S1...