(220101) -- MACAO, Jan. 1, 2022 (Xinhua) -- 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 south China's Macao. Three Chinese astronauts on board space station Tiangong held a video chat with youths in Beijing, Hong Kong and Macao Saturday afternoon, the first day of 2022. The trio crew had the live space-Earth talk with around 500 young students at three venues in Beijing, Hong Kong Special Administrative Region (SAR) and Macao SAR, sharing the space dream and aspirations. (Xinhua/Cheong Kam Ka)