Photo taken on Jan. 1, 2022 shows college students participating in a space-Earth video talk with the Chinese astronauts on board space station Tiangong in Beijing, capital of China. Three Chinese astronauts in space station Tiangong held a video chat with students in Beijing, Hong Kong and Macao Saturday afternoon, the first day of 2022. The live space-Earth talk was attended by around 500 young students at the three venues. The astronauts shared their space dream and aspirations. (Xinhua/Jin Liangkuai)