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Antarctic Gravity Anomaly Reveals Secrets of Earth's Interior

2/26/2026

Summary

Story summary

The University of Florida-led study finds the Antarctic Geoid Low, a gravity anomaly beneath Antarctica, has persisted for 70 million years.
It indicates a long-standing deep-Earth feature that reshapes understanding of the planet’s internal structure.
The study suggests changes in Earth’s gravity could influence regional sea levels and ice-sheet boundaries and has broader implications for planetary science and other celestial bodies, without directly linking gravity changes to ice growth.

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Story summary

The University of Florida-led study finds the Antarctic Geoid Low, a gravity anomaly beneath Antarctica, has persisted for 70 million years.
It indicates a long-standing deep-Earth feature that reshapes understanding of the planet’s internal structure.
The study suggests changes in Earth’s gravity could influence regional sea levels and ice-sheet boundaries and has broader implications for planetary science and other celestial bodies, without directly linking gravity changes to ice growth.