Hong Kong’s first astronaut Lai Ka-ying and her two fellow Shenzhou-23 crew members will deliver a live lecture from space for students and teachers in the city and neighbouring Macau. Hong Kong authorities revealed on Saturday plans for live broadcasts of “Tiangong Class” to take place soon, without specifying the date and time. The activity, jointly organised by the Hong Kong and Macau governments and the China Manned Space Agency, includes an expert lecture, an in-orbit demonstration and a...