The N.S. (Nuclear Powered Cruise Ship) Atlantis, or more frequently called The Atlantis, is the Tri State Cruises biggest ship-and also it's flagship-and the first cruise ship to use Nuclear power and the first ship to be launched as a joint cruise by the World's three major cruise line company, Tri State Cruises (USA), Costa (Italy) and The Star Cruises (Singapore). The cruise ship is so far one of the biggest, longest, and fastest commercial cruise liner in the world. It's known as the N.S. Atlantis and Costa Atlantis. The Executive Senior directors of the first 4 cruises are: