Paul Henry Nargeolet has dived to the Titanic many times. It's more than 30 times. He recorded a sound near the wreck site in 1998.

In the decades since, no one has been able to figure out what the blip is, whether it's another wreck, a geological feature or something new.

The mystery has been solved in 2020.

In an expedition down to the Titanic wreck earlier this year, Nargeolet and his fellow researchers were able to document a deep sea reef filled with marine life.

Nargeolet said they didn't know what to find. This could have been more than one thing, including the potential of it being another wreck.

I've been looking for the chance to look at the object that appeared on the radar. It was great to explore this area and see so much life.

The Nargeolet-Fanning Ridge was named after Nargeolet and Oisn Fanning after the researchers observed sponges, corals, fish, lobsters and more.

I knew I wanted to be a part of the effort when I heard about the possibility of a dive.

The team wants to share their findings with other scientists in order to improve our knowledge of deep sea life.

Steve Ross is a marine scientist from the University of North Carolina.

Water samples collected by the researchers can be used to learn more about the species we're dealing with on the newly discovered ridge.

Scientists will use computer models to figure out how sponges and corals spread across the ocean.

Continuing research into how climate change is impacting the oceans and how they might adapt as the waters warm up is one of the things this plays into.

Murray Roberts is a marine Biologist from the University of Edinburgh in the UK.

Murray's voice can be heard in a video released by the team which shows some of the deep-sea environment they saw while diving in their manned submersible named 'Titan'.