Enterprise (distant future)

The Enterprise was a starship active in a distant future where all spacefaring cultures in the Milky Way Galaxy had been unified in one grand Federation. 

History
On New Stardate γ 2143.21.3 the Enterprise was sent to investigate a Preserver artifact in the void between galaxies that made itself known by subspace message after the inauguration of the new Federation. The crew determined that the object contained doorways into alternate universes, and the ship's commanding officer ordered the crew to enter the object and see what was on the other side. 

Technical data
The Enterprise was capable of sidewarp factor 55, enabling it to leave the galaxy at great speed.