Originally Posted by Caspar

I forget...but help me remember...when Jack first met the Asgard...Thor said that 'Humans' have taken the first step to become the 5th race...the galatic alliance thing....consisting of the Ancients,Asgard, and two others...

They are one of the other two... their planet has a massive hidden city that hovers above ground level, they are masters of the mind and can heal their brethren...