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RMS Titanic, the ill-fated ocean liner, was discovered in 1985 by Robert Ballard, a renowned oceanographer. Using sonar technology, Ballard's team located the wreckage of the Titanic, which had sunk in the North Atlantic Ocean in 1912. The discovery revolutionized our understanding of the Titanic's final resting place and provided valuable insights into the tragedy that unfolded over a century ago.