Samples recovered from the nearby asteroid Ryugu by the haya2e_jaxa spacecraft are representative of both the asteroid’s surface and sub-surface, according to a new Science Report. Read more ➡ ScienceResearch
) is probably due, at least in part, to cracks/fractures in their interior. Microcracks or microporosity could also be responsible for the low thermal inertia.
The color, shape, surface morphology, and structure of returned pebbles and sand match those of Ryugu’s surface material observed from the spacecraft. We therefore conclude that the pebbles and sand inside Chambers A and C are representative samples of Ryugu at two surface sites, without substantial alteration during the sample collection and return to Earth.
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