Agrega una trama en tu idiomaDr. Robert Ballard's last dive to the wreck of the Titanic, which he discovered in 1985. Along with other experts, he discusses his feelings on how the wreck has changed over the years.Dr. Robert Ballard's last dive to the wreck of the Titanic, which he discovered in 1985. Along with other experts, he discusses his feelings on how the wreck has changed over the years.Dr. Robert Ballard's last dive to the wreck of the Titanic, which he discovered in 1985. Along with other experts, he discusses his feelings on how the wreck has changed over the years.