City-sized holes on Antarctica's ice shelves offer tantalizing 'window' into the frozen continent's underworld
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City-sized holes on Antarctica's ice shelves offer tantalizing 'window' into the frozen continent's underworld

Enormous‚ city-size holes that open up on Antarctica's ice shelf may be linked to the formation of giant icebergs that calve off of the frozen continent‚ a new study has found. These "windows into…