Death Star
The Death Star is a type of fictional mobile space station and galactic superweapon featured in the "Star Wars" space opera franchise. The first Death Star is stated to be more than 100 km to 160 km in diameter, depending on source. It is crewed by an estimated 1.7 million military personnel and 400,000 droids. The second Death Star is significantly larger, between 160 km to 900 km in diameter depending on source, and technologically more powerful than its predecessor. Both versions of these moon-sized fortresses are designed for massive power-projection capabilities, capable of destroying multiple naval fleets or entire planets with one blast from their superlasers.
RMS Leinster
The exact number of dead is unknown but researchers from the National Maritime Museum believe it was at least 564, this would make it the largest single loss of life in the Irish Sea.
In 1895, the City of Dublin Steam Packet Company ordered four steamers for Royal Mail service, named for four provinces of Ireland: RMS "Leinster", RMS , RMS "Munster", and RMS "Ulster". The "Leinster" was a 3,069-ton packet steamship with a service speed of . The vessel, which was built at Laird's in Birkenhead, England, was driven by two independent four-cylinder triple-expansion steam engines. During the First World War, the twin-propellered ship was armed with one 12 pounder and two signal guns.