At 7:52 a.m. local time on March 25, Cameron (@jimcameron) reached a depth of 35,755 feet and soon after issued what may be the world's deepest tweet: "Just arrived at the ocean's deepest pt. Hitting bottom never felt so good. Can't wait to share what I'm seeing w/ you @DeepChallenge"
March 26, 2012 12:32 AM PDT
Photo by: Photo by Mark Thiessen/National Geographic