A paper co-authored by four faculty members of the University of Aizu including three members of the Aizu Research Center for Space Informatics (ARC-Space)(※1) was published in the digital edition of Science(※2) on Friday, May 8, 2020.
The paper reported discoveries based on collected samples taken during a Hayabusa2's brief touchdown on asteroid Ryugu's surface. Based on images and video taken during the sampling process, authors investigated the surface colors and morphology on a small scale relating to the surface craters and stratigraphy constrains the evolution of Ryugu. The authors concluded that the asteroid experienced a prior period of strong solar heating caused by changes in its orbit.

<Paper title>Sample collection from asteroid 162173 Ryugu by Hayabusa2:implications for surface evolution 
-First author
MORODA Tomokatsu(The University of Tokyo, Associate Professor)(※3)
-UoA Coauthors (In order of author ranking)
HONDA Chikatoshi (Associate Professor)
HIRATA Naru (Senior Associate Professor)
KITAZATO Kohei (Associate Professor)
OHTAKE Makiko (Professor)

Responsibility for the wording of this article lies with Planning and Collaboration Division

E-mail Address

Related Article