Space Hulks

A space hulk is the term given by the Imperium of Man to the wreckage of a starship or a mangled twist of various starships and artificial debris found drifting through the vacuum of the Milky Way Galaxy without apparent direction. Many times they are so huge that they have their own atmosphere and gravity. Since the hulks often exit and re-enter the Warp seemingly at random, searching or traveling within them is dangerous in the extreme.