First Data:
Sci-News.com-Mar. 22, 2019
... Watanabe of JAXA and Nagoya University and co-authors presented the first up-close observations of Ryugu's mass, shape and density.
Space.com
The Japan Times-Mar. 20, 2019
Ryugu is classified as a C-type asteroid containing water and organic ... said Nagoya University's Professor Seiichiro Watanabe, another key ...
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