Analysis by Henrietta Mann and Bhavleen Kaur, both of Dalhousie University in Halifax, Nova Scotia, in conjunction with other scientists and researchers of the University of Seville in Spain, has determined that the wreck of Titanic will not exist by 2037 and that preservation of Titanic is impossible. "Unfortunately, because Titanic is 2.3 miles [4.3 km] down, it is very difficult or impossible to preserve. It is film which will preserve it for history now," says Mann.