On the night of April 14, 1912, as it made its first voyage, the luxury
steamship Titanic struck an iceberg. Then, a few hours after midnight on
April 15, the ship sank thousands of feet before settling on the ocean
floor. And that's where it stayed, whereabouts unknown, for the next 73
years until it was discovered by oceanographer Robert Ballard and his
crew. The pictures and video Ballard brought back from the 1985
discovery helped stir new interest in the Titanic's voyage and its
resting spot.