Nebulus is a fictive module (based on the real ISS) which hold up trusses and modules. In this pack you have the main module Nebulus and 3 types of trusses. On this trusses you can dock others modules like a robotic arm, a palet for scientific instruments, etc.
Nebulus use 2 CBM (large) ports and one more for a truss.
Please read doc.
update v1.1: 15 Sept 06
Add manual in french/english, and Add the 3D sources in anima8or format.