Board Thread:Theories and Speculation/@comment-28252336-20160512041801/@comment-734582-20160512084003

KeoRose wrote: then sealed them both into the vessel on the moon. (Whatever the hell that thing was for) It maintained the temperature and gravity in the moon. It's the only way such a thing could be habitable.

Also, Hamura was never shown with Tenseigan, not even when his spirit visits Hinata.