Halomonas titanicae is a species of bacteria which was found on rusticles in the wreck of the RMS Titanic. Dr Henrietta Mann discovered the bacteria when analysing rusticle samples taken from the Titanic in 1991. She assumes the bacteria is eating the Titanic's metal at a rapid speed, but this is exaggerated. When asked how long it will be until Titanic becomes a pile of rust on the sea floor, she has said I don't know the speed of the bacteria eating the iron, but it seems by comparing earlier photos with the latest rapid change is occurring. Maybe in 20 or 30 years the wreck will collapse into a heap of rust. Another estimate is that Titanic may have 15 or 20 years before she collapses. The bacteria has been listed as potentially dangerous to oil rigs and man-made objects in the deep sea, although an advantage to Halomonas titanicae's discovery is that old ships that litter the sea floor will be recycled by this bacterium. 
- Cristina Sánchez-Porro, Bhavleen Kaur, Henrietta Mann & Antonio Ventosa (2010). "Halomonas titanicae sp. nov., a halophilic bacterium isolated from the RMS Titanic". International Journal of Systematic and Evolutionary Microbiology 60: 2768–2774. doi:10.1099/ijs.0.020628-0. PMID 20061494.
- Betsy Mason (May 24, 2011). "Top 10 New Species Discovered in 2010". Wired. Retrieved June 7, 2011.
- "New species of bacteria found in Titanic 'rusticles'". BBC News. December 6, 2010. Retrieved June 7, 2011.
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