Shenzhou-21 and Shenzhou-23 Crews Complete Space Handover
The crews of China’s Shenzhou-21 and Shenzhou-23 missions completed an in-orbit handover ceremony aboard the Tiangong space station on May 28, 2026, formally transferring control of the station as the departing crew prepares to return to Earth after a record-breaking mission. The handover marks another significant milestone in China’s rapidly maturing manned space program, which this week also welcomed its first astronaut from Hong Kong.
A Record-Breaking Mission Concludes
The Shenzhou-21 crew — Commander Zhang Lu, payload specialist Zhang Hongzhang, and crew member Wu Fei — has completed all assigned tasks and will return to Earth aboard the Shenzhou-22 spacecraft in the coming days, landing at the Dongfeng Landing Site, according to Xinhua News.
As of May 23, the Shenzhou-21 crew had spent 203 days in orbit, setting a new record for the longest Chinese crewed spaceflight mission, as reported by CCTV via the 21st Century Business Herald. During their tenure, Commander Zhang Lu completed seven spacewalks — the most of any Chinese astronaut — while Wu Fei became the youngest Chinese astronaut to perform a spacewalk.
The departing crew also achieved several scientific firsts, including China’s first in-orbit closed-loop breeding of mice, the first in-orbit aeroponic cultivation of cherry tomatoes and wheat, and the successful in-orbit ignition of novel ionic liquid propellants.
A Historic Arrival: Hong Kong’s First Astronaut
The Shenzhou-23 spacecraft launched on May 24, 2026, at 23:08 Beijing time from the Jiuquan Satellite Launch Center aboard a Long March 2F Y23 rocket, as detailed by East Money and People’s Daily. The crew — Commander Zhu Yangzhu (flight engineer), Zhang Zhiyuan (spacecraft pilot), and Li Jiaying (payload specialist) — represents China’s first crew composed of third and fourth-generation astronauts.
Li Jiaying, a former police superintendent in the Hong Kong SAR Government with a PhD in Computer Science from the University of Hong Kong, is China’s first female astronaut from Hong Kong and the first fourth-generation Chinese astronaut to fly. “Hong Kong has always shared the same fate and bloodline with the motherland,” Li said during a press conference. “We are not only witnesses of the nation’s development, but also participants and contributors.”
Her participation marks a historic deepening of Hong Kong’s integration into China’s space program. The Tianzhou-10 cargo ship, launched earlier this month, carried payloads developed by Hong Kong universities.
Accelerated Launch and Technical Achievement
Shenzhou-23 was originally scheduled for October 2026 but was moved forward by five months due to mission requirements. According to IT Home via CCTV, the development team compressed five months of work into six months, nearly doubling their work speed while maintaining rigorous quality assurance.
The spacecraft performed a 3.5-hour fast rendezvous and docking with the space station, a protocol validated on multiple previous missions. The docking was supported by China’s upgraded Beidou navigation system, which transitioned from Generation 2 to Generation 3, providing enhanced positioning support.
One-Year Stay Experiment and Lunar Ambitions
One member of the Shenzhou-23 crew will conduct a one-year in-orbit stay experiment — China’s first such long-duration mission. The China Manned Space Engineering Office stated that this will implement China’s first space human research plan, gathering extended flight data and validating long-duration health protection capabilities.
Zhang Jingbo, spokesperson for the China Manned Space Engineering Office, noted that the space station missions have cultivated a team of experienced astronauts, providing “solid talent reserves for future crewed lunar mission crew selection.” China aims to land astronauts on the Moon by 2030, and the space station serves as a critical testbed for lunar mission technologies.
Broader Context and Forward Look
This mission is China’s 40th crewed spaceflight, the 644th Long March rocket launch, and the 23rd Shenzhou spacecraft flight, according to Beijing Review. The smooth handover demonstrates the operational maturity of China’s space station program, now in its fourth year of stable operation.
The handover also comes against the backdrop of the Shenzhou-22 incident — a unique situation in Chinese spaceflight history where a mission number remains permanently vacant. This resulted from a November 2025 emergency when the Shenzhou-20 spacecraft’s window was cracked by space debris, triggering China’s first crewed spaceflight emergency action.
Looking ahead, China is positioning its space station as an alternative to the International Space Station, with international partner training already underway — including Pakistani astronauts training alongside Chinese crews. With regular crew rotation now established and long-duration missions on the horizon, China’s human spaceflight program is steadily building the capabilities needed for its ultimate goal: planting Chinese footprints on the lunar surface before the decade is out.