planetary history tagged posts

A mysterious mineral in asteroid Ryugu may rewrite planetary history

FE-TEM of Ryugu grain No. 15 from sample plate C0105-042, containing the djerfisherite inclusion
Scanning electron micrograph of the number 15 grain of sample plate C0105-042 from Ryugu, in which djerfisherite was discovered. (Hiroshima University/Masaaki Miyahara).

Serendipitous discovery of djerfisherite in Ryugu grain challenges current paradigm of the nature of primitive asteroids. A surprising discovery from a tiny grain of asteroid Ryugu has rocked scientists’ understanding of how our Solar System evolved. Researchers found djerfisherite—a mineral typically born in scorching, chemically reduced conditions and never before seen in Ryugu-like meteorites—inside a sample returned by Japan’s Hayabusa2 mission...

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