Board Thread:Theories and Speculation/@comment-27924662-20160817160245/@comment-734582-20160820114958

Georgio722 wrote: Namikazenaruto9 wrote: so I guess IT would affect half the earth at most(or the portion facing the moon meaning that if we can reach the other half each time we could be safe)?? I think the IT light shines through the Earth, so on the other side, the light would be coming out of the ground or whatever. Looking at "the Last", it seems the Ninja world only covers one half of the world. So reflecting off the moon would be enough.

The Anime contradicts this, but considering the Moon was made from a Chibaku tensei, it's likely that the Shinju grew on a continent that is now part of the moon.