- last post: 01.01.0001 12:00 AM PDT
thoery 2 could be logical, if they have constructed halo, then earth is just a sphere world with its inhabitants inside, and the outside would look like a natural world, able to sustain life too, make it habitable inside and out
edit: the core could be contained by a super dense meltal with a melting tempurature higher then 100 times the heat of plasma(plasma as in the plasma used on earth already with is calculated to be about 10 times the heat of our sun) as the outside would orbit the world perfectly, and the light of the inner core would provide enough solar energy to sustain on facilities inside/outside (NASA also plans that when we have better space travel, that we hollow out astroids and make them giant space cities)
[Edited on 7/3/2006]