| 1. | The soil becomes very dense beneath the top layer of regolith.
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| 2. | To be effective in soil formation, water must penetrate the regolith.
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| 3. | Many aquifers, such as alluvial aquifers, occur entirely within regolith.
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| 4. | In addition to lacking significant regolith, they also lack much vegetation.
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| 5. | Needles 3 and 4 measure liquid water in the regolith.
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| 6. | Just heat the regolith to 2, 500 C in a vacuum.
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| 7. | Basalt fibre has also been made from lunar regolith simulators.
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| 8. | Regolith production continues to the present day on all units.
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| 9. | Visually, the somewhat subdued and mantled appearance suggests a substantial regolith.
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| 10. | In the case of lunarcrete, the aggregate would be lunar regolith.
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