In this screenshot captured by NPR, the bow of the shipwrecked Titanic is seen from the first human-operated vehicle to visit the site in 1986. The Woods Hole Oceanographic Institution released footage from that 1986 dive on Wednesday. Screenshot by NPR/WHOI hide caption
Fans have long debated whether there was room for both Jack (Leonardo DiCaprio) and Rose (Kate Winslet) on the makeshift raft in the 1997 blockbuster Titanic. CBS Photo Archive via Getty Images hide caption
A judge in Virginia has ruled that a salvage company may cut into the remains of the Titanic to retrieve the ship's wireless telegraph machine. Artifacts from the sunken vessel are sit on shelves at a storage facility in Atlanta in this Feb. 18 photo. Angie Wang/AP hide caption
The Titanic set out from Southampton, England, in 1912 — and infamously dragged more than 1,500 of its passengers and crew to their deaths not long afterward. Now the underwater wreckage of the historic vessel is getting some new protections. Central Press/Getty Images hide caption
A 30-foot by 30-foot mock-up of the Titanic replica now under construction stands near the construction site in China's Sichuan Province. Rob Schmitz/NPR hide caption
Bill Paxton attends the People's Choice Awards in Los Angeles last month. Emma McIntyre/Getty Images for People's Choice Awards hide caption
Construction on the keel of a replica of the Titanic began on Nov. 30 in Suining, Sichuan province, China. VCG via Getty Images hide caption
The ill-fated Sultana in Helena, Ark., just before it exploded on April 27, 1865, with about 2,500 people aboard. Most were Union soldiers, newly released from Confederate prison camps. Library of Congress hide caption
A letter written aboard the Titanic on the day that it sank sold at auction for around $170,000 in England Saturday. Henry Aldridge & Son hide caption
This violin is said to have been played by bandmaster Wallace Hartley during the final moments before the sinking of the Titanic. It's thought he put the instrument in that leather case. Hartley's body and the case were found by a ship that responded to the disaster. Now the violin has been sold. Peter Muhly/AFP/Getty Images hide caption
An artist's image of the Titanic II. Blue Star Line/UPI /Landov hide caption
April 4, 1912: The Titanic leaves Southampton, England, on her ill-fated first voyage. Southampton City Council/AFP/Getty Images hide caption
Laurie and Dan Castaneda from Long Beach, Calif., walk the pool deck of the Azamara Journey on a Titanic Memorial Cruise. Preparation for their costumes involved several weeks of research, last-minute purchases and even home-sewn clothing from vintage patterns. Richard Drew/AP hide caption
The cast and crew of Titanic, as pictured in my 2001-2002 yearbook. I'm standing in the third row back on the right side, in front of the "captain." Courtesy of Dana Farrington hide caption
The Titanic, which sank 100 years ago in April. Central Press/Getty Images hide caption