What Hayabusa2 Will Find at Asteroid Ryugu, and What It Will Reveal About the Source of Earth's Water

Zolensky, Michael

关键词: ASTEROIDS;    CARBONACEOUS CHONDRITES;    METEORITES;    MINERAL DEPOSITS;    SURFACE PROPERTIES;    WATER;    HYDROLOGY;    MINERALS;    SOLAR SYSTEM;   

RP-ID  :  JSC-E-DAA-TN51549

学科分类：空间科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Water-rich carbonaceous chondrites contain evidence of aqueous alteration in the early solar system. To see this one must look carefully at the meteorites, and see past the later alteration which has generally obscured mineral textures. We suggest that these materials will dominate, be detectable, and be sampled on the surfaces of C-class asteroids, initially by the Hayabusa2 spacecraft. Thus, hydrous samples returned by this mission will help to reveal the source of water on earth.