Group 1 - The core event is the press conference held by the Shenzhou 19 astronaut crew after their 183-day stay in space, where they shared their experiences and insights [1] - Astronaut Cai Xuzhe returned to the Tiangong space station just 22 months after his last mission, setting a record for the shortest time between missions for Chinese astronauts [2][3] - Cai described the feeling of returning to the space station as both familiar and strange, emphasizing the shift from being a crew member to leading a team [4][5] Group 2 - The Shenzhou 19 mission involved a significant challenge when a cargo adapter became stuck, requiring the astronauts to perform an emergency spacewalk to resolve the issue [6][7] - The first spacewalk lasted 9 hours, setting a new record for the longest spacewalk by Chinese astronauts and a world record for single spacewalk duration [6][7] - Astronaut Song Lingdong, the youngest member of the crew, expressed a strong sense of responsibility and teamwork during the mission [8][10] Group 3 - The crew conducted various scientific experiments, including breeding fruit flies in space, which is significant for understanding biological processes in microgravity [15][16] - Song Lingdong also successfully grew sweet potatoes in space, drawing on his childhood experience with gardening [17][18] - Astronaut Wang Haoze, the first female flight engineer, highlighted the challenges faced by female astronauts in training and execution of tasks [19][22] Group 4 - The Shenzhou 19 mission included over half new experiments and projects, with the crew collaborating closely with researchers to ensure successful execution [22] - Wang expressed pride in contributing female data to brainwave experiments, emphasizing the importance of diversity in scientific research [23] - The astronauts shared a deep emotional connection to their homeland, often looking for familiar landmarks from space and feeling a strong sense of belonging to both Earth and the space station [25][24]