Tritanic

The Tritanic was a luxury class astroliner of the 59th century that was built to withstand the time winds of the Kolox Nebula using an experimental time-navigation unit. The time-nav unit attracted the interest of a surviving Skrawn hiveship that boarded the Tritanic and stole it before it was returned by the Tenth Doctor. Many passengers died on that particular voyage; if not casualties of the Skrawn sting, then sucked out into space when the Skarawn ship departed, leaving the docking doors unsealed. (DWAM: The Skrawn Inheritance)