Board Thread:Warhammer 40k General Discussion/@comment-7186329-20130329164207/@comment-8881468-20160816230811

not really correct.

Did the asteroids have an atmosphere beforehand?

remember: the tyranids remove all atmosphere and many many other ressources from a planet, you basiccally have a barren rock with no material that can support any form of life. that means your spores will not mature because they dry out or starve, hence no new orks will come.'

Also basic physics dictateprett much that matter annnot be randomly created, it can be transformed but not created from 0.

Also: as tyranids come from other galaxies, what do you think, happened to them.... they have annihilated them before.