Rare visual material from the wreck of the Titanic is coming to light in a few hours, almost four decades after its discovery and 111 years after the sinking of the British ocean liner.

The footage was filmed a few months after the wreck was discovered in 1985 and will be streamed on the Woods Hole Oceanographic Institution (WHOI) YouTube page. Most of the material (totaling 80 minutes) has not seen the light of day, according to WHOI.

Many documentaries about the Titanic have shown images of the most famous shipwreck in history.

The Titanic was a “miracle” of shipbuilding for its time. It was characterized as an “unsinkable” ocean liner and was the largest yet built.

On her maiden voyage from Southampton to New York, she struck an iceberg in the Atlantic Ocean and sank, killing 1,517 of the 2,240 on board, sparking an outcry over the lack of lifeboats.

Researchers from the US Woods Hole Oceanographic Institution (WHOI) and France’s National Institute of Oceanography located the sunken ship on the floor of the Atlantic on September 1, 1985 southeast of Newfoundland, Canada.

Dives in July 1986 captured images from cameras on a submarine and a robotic submersible. Today’s unveiling of this rare material coincides with the re-release of James Cameron’s Titanic, which premiered at the 1997 Tokyo International Film Festival and won 11 Academy Awards.