On the 1^st September, 1985, an expedition organised by Robert Ballard finally discovered the wreck of the RMS Titanic (sunk in the North Atlantic on the 15^th April 1912 after colliding with an iceberg) lying at a depth of about 3,800 metres, some 600 kms southeast of the Newfoundland coast.   

In August of 2005, ‘Shadow Divers’, John Chatterton – the first diver to use rebreather diving technology on the wreck of Titanic’s sister-ship, HMHS Britannic, sunk near the island of Kea, in Greece – and his long-time dive partner, Richie Kohler, put together an expedition to search for previously unseen pieces of RMS Titanic’s scattered  wreckage.  

Operating from the Russian Research Ship, Keldysh, the pair made a series of dives on the wreck to a depth of 3,786 meters in MIR submersibles – each descent taking some 2.5 hours – to film hitherto unseen aspects of the wreck that subsequently featured in a History Channel special documentary, ‘Titanic’s Final Moments – Missing Pieces’.