She was under construction by November 2155 at Proxima Shipyard, and launched in late February, 2156. Her first mission, along with the Starfleet's other NX-class starships, was to test the warp detection grids provided by the Vulcans for Coalition worlds. (ENT - The Romulan War novel: Beneath the Raptor's Wing) Atlantis was destroyed on June 20, 2156 over Tau Ceti IV during the Romulan invasion, but the crew managed to get into the escape pods. (ENT - The Romulan War novel: Beneath the Raptor's Wing)