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The team reached a depth of 7,060 feet (2,152 meters) and threaded instruments through the hole to record water pressure and ice temperature, and to measure how much the ice has deformed.
By drilling down deep, the team hopes to find out how long ago the Antarctic ice sheet last disappeared and how water and sediments may be nudging the ice toward the sea, according to the project's webpage.
The team drilled a second hole on Jan. 22, and the project is expected to continue until mid-February.
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