China held a send-off ceremony for the three astronauts of the Shenzhou-23 mission on Sunday night, May 23, 2024 [1], [2].

The mission marks a significant step in China's long-term space-station and lunar-exploration program. By extending the stay of crew members in orbit, the program seeks to gather critical data on human endurance in space.

The ceremony took place at the Jiuquan Satellite Launch Center in Gansu province [1], [3]. The crew consists of three astronauts [1], including Lai Ka-ying, who is the first astronaut from Hong Kong [3].

Lai expressed his gratitude during the preparations for the flight. "I feel very honoured and thankful to be chosen," Lai said [3]. He also encouraged others to "chase your dreams" [4].

The Shenzhou-23 spacecraft is designed to transport the crew to the Tiangong space station. As part of the mission's objectives, one astronaut is slated to remain on the station for a full year [1], [5].

This extended deployment is a key component of the broader strategy to establish a permanent human presence in low Earth orbit. The mission serves as a precursor to more ambitious goals, including future crewed lunar explorations [5].

Officials at the Jiuquan center oversaw the final protocols before the launch. The event highlights the growing integration of different Chinese regions into the national space program through the inclusion of representatives from Hong Kong [3].

“"I feel very honoured and thankful to be chosen."”

The inclusion of a Hong Kong astronaut and the commitment to a year-long orbital stay signal China's intent to transition from short-term missions to sustainable, long-term habitation. This progression is essential for the physiological and psychological research required to support future missions to the moon.