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The Shenzhou 21 crew completed a seven-hour spacewalk, showcasing China's advancing human spaceflight capabilities and orbital infrastructure. This activity not only emphasizes technical achievements but also reflects the legal implications of space operations under the Outer Space Treaty of 1967.

The mission contributes to the maintenance of the Tiangong space station and supports scientific research in various fields. China's space activities are governed by international legal frameworks that ensure safety and accountability. As global competition in space intensifies, China positions itself as a significant player in future space governance and international scientific cooperation.