I first tried it with white glow blocks, but it was way too bright. I then recolored it to grey, but i looked strange and viewed from some distance it would suddenly stop glowing at all.
So now its just made up from 0.25 cubes of hull blocks. Grabbed a picture from google and resized it to 50x50px
The Hull of the ship is "Snow" and i found nothing brighter in white, so i painted it black :D
Here a close up: