Far-Side Lunar Sample Handover
China Donates First Far-Side Lunar Samples to the United Nations
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China donated a lunar sample collected by its Chang’e-6 mission from the far side of the Moon to the United Nations in Vienna on Sept. 14, where it will remain on permanent display. The handover marked the first presentation of far-side lunar material to the organization and was attended by UN officials, diplomats and representatives of international organizations. Chinese officials described the donation as evidence of support for the UN, multilateralism and the peaceful exploration and governance of outer space, while UN representatives called space a shared domain for humanity. The 1.935-gram sample also carries scientific significance, with research indicating that Earth’s magnetosphere affects the solar-wind exposure and isotopic composition of lunar soil on the Moon’s two hemispheres.
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The handover ceremony was jointly organized by the China National Space Administration, China’s Permanent Mission to the UN and other international organizations in Vienna, and the UN Office for Outer Space Affairs; more than 400 guests attended, including heads of international organizations and permanent representatives from various countries.
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The sample was jointly unveiled by CNSA Administrator Shan Zhongde, UN Office at Vienna Director-General Monica Juma, UNOOSA Director Aarti Holla-Maini and China’s representative Li Song, before being placed on permanent display at the UN headquarters in Vienna.
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China said future space cooperation should be anchored in the Outer Space Treaty, preserve the peaceful-use principle and oppose the weaponization of outer space, while promoting space science and technology as a platform for win-win cooperation.
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The scientific study found stronger isotopic fractionation of neon, krypton and xenon on the far side than on the near side. Researchers attributed the difference partly to the near side’s periodic passage through Earth’s magnetosheath, where solar-wind particles slow to about 200 kilometers per second before reaching the lunar soil.
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CNSA Administrator Shan Zhongde said the donation supports the UN Committee on the Peaceful Uses of Outer Space as the main platform for global space governance and reflects China’s stated willingness to share the benefits of its space program with other countries.
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