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Study Reveals Moon Shields Against Solar Wind Erosion

7/24/2025

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Summary

Story summary

A groundbreaking study from TU Wien and the University of Bern has unveiled that the Moon's surface plays a crucial role in shielding it from solar wind erosion, overturning long-held assumptions. Analyzing Apollo 16 samples, researchers discovered sputtering rates up to ten times lower than expected, indicating that micrometeoroids, rather than solar wind, are the main contributors to the Moon's exosphere.

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Story summary

A groundbreaking study from TU Wien and the University of Bern has unveiled that the Moon's surface plays a crucial role in shielding it from solar wind erosion, overturning long-held assumptions. Analyzing Apollo 16 samples, researchers discovered sputtering rates up to ten times lower than expected, indicating that micrometeoroids, rather than solar wind, are the main contributors to the Moon's exosphere.