Science

Lunar fault maps reveal how much the moon is shrinking

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 15/10/2026, 22:55:23 UTC.

Briefings

A 2026 study provides the most detailed estimate of lunar contraction by analyzing young tectonic landforms, suggesting the moon has shrunk significantly due to interior cooling. The research identifies specific geological features that serve as proxies for past crustal thinning, offering a new method to quantify the moon's size reduction over geological time.

Key points

• The study analyzes young tectonic landforms on the moon to estimate contraction.
• The most detailed estimate of lunar contraction is based on the cooling of the moon's interior.

Context

This research offers a new method to quantify the moon's size reduction over geological time by examining specific geological features that act as proxies for past crustal thinning.

Limitations

The evidence is limited to a single study published in 2026. The specific units of measurement for contraction are not provided, and the study does not include historical data or comparisons to other lunar models.

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