This is CBS Eye on the World.

Here's John Batchler.

A submersible name, Titan, 21 feet, deep sea vessel, missing.

In an area where told the size of Connecticut, the search continues.

However, the ambition of Titan was to descend more than 12,000 feet two and a half miles

to what remains of the Titanic.

I welcome two men who have recently acquainted me again with the mysteries and the joy and the legend of the Titanic.

I welcome Charles Pellegrino, author of the Ghost of the Titanic, and Anthony Alcuri, a researcher who has published along with Charles Pellegrino and Jim Cameron, the Hollywood director.

A recent peer-reviewed article about what is discoverable in the Titanic, in the dives to the Titanic, with remote sensing on the Titanic.

Mysteries of a ship that is as famous as anyone can imagine in the solar system, now the scene of yet another potential mystery.

The Titan, Charlie, a very good evening to you, Anthony.

Your dives, Charlie. How many dives did you make to the Titanic so far in your young life? Good evening, Charlie.

Two dives to the Titanic.

It's one of the most mysterious places on Earth, not just because of all the amazing biology,

but you're working in many different fields at once there. Forensic archaeology, history, for me, half the story, half the amazement is the biology down there.

I go to you, Anthony. The biology includes the Turkish bass, which you acquainted this audience with the last time we spoke.

Can you encapsulate what it is about the Turkish bass that is so transporting to you?

Yes, the Turkish bass is an anoxic chamber deep within the remote wreck of the Titanic. It features the most remarkable preservation from 1912.

It's almost like an archive in the deep and within it, due to the lack of oxygen, accounting for this preservation.

We see biology that's very unique. The rest of the bacteria have demonstrated magnetotaxis, a mechanism that has effectively fossilized the chemical history of the room and explained and elucidated for us why we're seeing deck chairs on the Titanic or intact tile panels and intact woodwork with its hand carved motifs still intact, which is, it was just a phenomenal site.

Charlie, I come back to you because you have two dives to the Titanic and I believe there was an additional dive. What were the craft you made the dives on, Charlie?

The mirrors, the Russians, they're in a sphere, almost six feet across that is steel. They've been tested for many decades and the American one, the Alvin, it's a titanium sphere.

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