Put those prefix codes away; I assure you this U.S.S. Reliant is quite benign. It's the work of Christer Nyberg, and as you can see, his love of Star Trek is probably matched only by his skill with Legos.
Nyberg spent almost two years on the project, using over 10,000 Lego pieces. The proof is in the detail; as a big Star Trek fan myself, I can say this recreation is spot-on. He even went so far as to put lighting effects on the ship. Now that's some attention to detail!
[flickr page via Neatorama]