In 1985, oceanographers Robert Ballard, Jean-Louis Michel, and their crew located the wreck of the RMS Titanic at the bottom of the Atlantic Ocean. Images of the shipwreck have since become as iconic as photographs of the ocean liner taken before the 1912 tragedy. But the ruin's time in the ocean is limited. As part of an upcoming documentary, a crew of scientists carried out the first manned expedition to the wreck in 14 years and discovered the Titanic is rapidly decaying, BBC reports.

After it sank, the Titanic settled in two parts on the seafloor about 370 miles off the coast of Newfoundland, Canada. Most of the wreck is still intact, but a lot has changed since 2005, when it was last visited by a human-occupied submersible.

While working on a film for Atlantic Productions London, an exploration team from Triton Submarines visited the wreck five times over eight days and discovered that entire sections of the ship have disappeared. The starboard side of the officer's quarters has deteriorated, and the captain's bathtub is totally gone. The deck house on the same side and the sloping lounge roof of the bow are also on the brink of collapse, according to the crew.

Unlike other artifacts and historic sites, there's no way to preserve the wreckage of the Titanic for future generations. Churning ocean currents, corrosive salt, and metal-eating bacteria will continue to break down the steel behemoth until it becomes part of the sea. Some experts estimate that by 2030, it's likely that no part of the wreck will remain.

Whether that projection is off by years or decades, these findings suggest that every new team that visits the Titanic may find something different than the team before them. On this most recent expedition, the Triton Submarines exploration team was able to film the wreck in 4K for the first time. That footage may end up being some of the last ever captured of many elements of the ship.

[h/t BBC]