What geophysical finding was detected deep underneath the gigantic South Pole–Aitken structure?
Answer
A significant mass anomaly.
Geophysical investigations, especially those analyzing gravity data, have identified a significant concentration of mass located deep beneath the South Pole–Aitken basin. This mass anomaly complicates the simple view of the impact event, suggesting complex mechanics where dense material, possibly related to the deeply buried impactor or uplifted mantle material, settled in a concentrated manner, creating a distinct gravitational contrast picked up by sensors.
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