The unprecedented participation of a Hong Kong researcher in the nation’s space flight mission is testament to the country’s high regard for the city’s innovation and technology talent and accomplishments, Chief Executive John Lee Ka-chiu has said. Lee congratulated payload specialist Lai Ka-ying, who is also a police superintendent, after she was named on Saturday morning as one of three astronauts who will take the Shenzhou-23 space flight to China’s Tiangong space station on Sunday...