Fig. 1: Particle A0064–FO007–I of asteroid Ryugu.

A Secondary electron image. B Corresponding backscatter electron image. C Scanning electron microscopy–energy-dispersive X-ray spectrometry (EDS) elemental mapping at an acceleration voltage of 5 kV. Note that, because the detector was located to the right of the image, the left-hand side of the particle was shaded and could not be detected accurately. D EDS corresponds to the whole area of A0064-FO007-I in region (C). The scale bars for (A–C) are 10 μm.