[Aerozord]

well abit about the alien zone. Its a metalic area of an unknown alloy thats far stronger and denser then earth. Inside are vast chambers filled was a deadly atmosphere that will kill a human in only a few breaths, though safe to have contact with the skin. Atleast in the short term

Whenever the nanomachines come across organic matter, it is broken down and rebuilt into alien life forms that are contained in the underground chambers as self contained biospheres.