By National Geographic
for National Geographic News
Published 6 p.m. ET, March 25, 2012
As of 5:52 p.m. ET Sunday (7:52 a.m. Monday, local time), James Cameron has arrived at the Mariana Trench's Challenger Deep, members of the National Geographic expedition have confirmed.
[b]His depth on arrival: 35,756 feet (10,898
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