Iron whiskers on asteroid Itokawa indicate sulfide destruction by space weathering

oleh: Toru Matsumoto, Dennis Harries, Falko Langenhorst, Akira Miyake, Takaaki Noguchi

Format: Article
Diterbitkan: Nature Portfolio 2020-02-01

Deskripsi

The authors here investigate troilite (FeS) grains recovered from the regolith of asteroid Itokawa. Finding wide-spread occurrence of metallic iron whiskers, the authors suggest them to be a decomposition product formed through irradiation of the sulfide by energetic ions of the solar wind.