Club, Titanic, and Tumblr: When Robert Ballard (professor of  oceanography) announced a mission to find  the Titanic, it was a cover story for a  classified mission to search for lost nuclear  submarines. They finished before they were  due back, so the team spent the extra time  looking for the Titanic and actually found it.  Ultrafacts.tumblr.com laughoutloud-club:  Top of the iceberg