Extended Data Fig. 3. Textural Comparison between frothy layers and laser irradiated samples.
(a) SE image of a frothy layer on the Ryugu grain A0104–0223700. (b) Backscattered electron image of the surface of the Murchison CM chondrite after laser irradiation experiment. In both (a) and (b), there are many burst vesicles on grain surfaces. (c) HAADF-STEM image of a frothy layer in a cross-section sample A0058–C2001–02 on the large Ryugu grain A0058–C2001. (d) BF TEM image of the Murchison meteorite cross-section sample after laser irradiation experiment. One of the run products of the laser irradiation experiments performed by Thompson et al. (2019) was used for comparison.