What are the darker streaks around the crater made of?

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Darker Streaks Around Lunar Crater Composed of Altered Surface Material

The darker streaks observed radiating from the lunar crater are composed of surface dust and rocks that have undergone prolonged alteration. This transformation is attributed to the cumulative effects of solar wind, galactic cosmic rays, and numerous micrometeorite impacts over extended periods. The material forming these streaks was ejected from approximately 1.5 feet beneath the Moon's surface during the impact event that created the crater.
Composition of Darker Streaks

The darker streaks are not primary ejecta but rather pre-existing surface materials that have been disturbed and exposed. NASA's analysis indicates that these streaks represent dust and rock that have been weathered and modified by constant exposure to the space environment. This continuous bombardment by solar particles and small meteoroids gradually changes the properties of the lunar surface material over geological timescales.
Ejection Mechanism

The material forming the darker streaks was forcefully expelled outwards from the impact site. The collision of the SpaceX Falcon 9 upper stage with the Moon's surface generated sufficient energy to excavate material from a depth of about 1.5 feet. This ejected material, already altered by space weathering, then settled in patterns that form the visible streaks extending from the crater's edges.
Distinguishing from Brighter Ejecta

These darker streaks are distinct from the brighter material found closer to the crater's rim. The brighter streaks are comprised of fresher lunar regolith that was excavated from deeper within the lunar crust during the impact. This freshly exposed material has not yet undergone the same degree of space weathering as the material forming the darker streaks, hence its brighter appearance in the captured imagery.

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What are the darker streaks around the crater made of?

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