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Unmanned Submarine Maps Antarctic Ice Shelf, Reveals Melting Insights

4/13/2026

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Summary

Story summary

The unmanned submarine Ran mapped the Dotson Ice Shelf in West Antarctica and went silent ten miles beneath the ice.
Anna Wåhlin from the University of Gothenburg led the mission.
Ran's sonar mapping revealed terraces, channels, and teardrop-shaped pits previously hidden from satellite images.
The findings suggest warm water from the Southern Ocean accelerates melting on the western side.
The data will improve predictions of future ice loss.

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Story summary

The unmanned submarine Ran mapped the Dotson Ice Shelf in West Antarctica and went silent ten miles beneath the ice.
Anna Wåhlin from the University of Gothenburg led the mission.
Ran's sonar mapping revealed terraces, channels, and teardrop-shaped pits previously hidden from satellite images.
The findings suggest warm water from the Southern Ocean accelerates melting on the western side.
The data will improve predictions of future ice loss.