Passive Seismometer
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Geophysics
Passive Seismometer
Passive seismometers on the Moon revealed hidden moonquakes and meteoroid impacts shaping lunar geology
2 Feb 2026
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What was the primary scientific purpose of the Apollo 12 Passive Seismic Experiment on the Moon?
To actively generate seismic waves to map the Moon's surface features.
To measure the Moon's atmospheric pressure and temperature variations.
To determine the Moon's internal structure, physical state, and tectonic activity by detecting vibrations and tilting.
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