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Evidence of water on the lunar surface from Chang'E-5 in-situ spectra and returned samples TEXT SIZE: A A A

The distribution range, time-varying characteristics, and sources of lunar water are still controversial. Here we show the Chang'E-5 in-situ spectral observations of lunar water under Earth's magnetosphere shielding and relatively high temperatures. Our results show the hydroxyl contents of lunar soils in Chang'E-5 landing site are with a mean value of 28.5 ppm, which is on the weak end of lunar hydration features. This is consistent with the predictions from remote sensing and ground-based telescopic data. Laboratory analysis of the Chang'E-5 returned samples also provide critical clues to the possible sources of these hydroxyl contents. Much less agglutinate glass contents suggest a weak contribution of solar wind implantation. Besides, the apatite present in the samples can provide hydroxyl contents in the range of 0 to 179 +/- 13 ppm, which shows compelling evidence that, the hydroxyl-containing apatite may be an important source for the excess hydroxyl observed at this young mare region.

Laboratory analysis of returned Chang'E-5 samples from the lunar surface show their hydroxyl contents to be on the weak end of lunar hydration features.

Publication name

 NATURE COMMUNICATIONS, Volume 13, Issue 1, Article Number 3119, DOI 10.1038/s41467-022-30807-5, Published JUN 14 2022


 Liu, Jianjun; Liu, Bin; Ren, Xin; Li, Chunlai; Shu, Rong; Guo, Lin; Yu, Songzheng; Zhou, Qin; Liu, Dawei; Zeng, Xingguo; Gao, Xingye; Zhang, Guangliang; Yan, Wei; Zhang, Hongbo; Jia, Lihui; Jin, Shifeng; Xu, Chunhua; Deng, Xiangjin; Xie, Jianfeng; Yang, Jianfeng; Huang, Changning; Zuo, Wei; Su, Yan; Wen, Weibin; Ouyang, Ziyuan

Corresponding author(s) 

 Li, Chunlai
 -Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing 100101, Peoples R China
 -Univ Chinese Acad Sci, Beijing 100049, Peoples R China

 Shu, Rong


 Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Space Act Optoelect Technol, Shanghai 200083, Peoples R China

Author(s) from IGCAS   Ouyang, Ziyuan

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