Talk:Planet/@comment-99.22.206.227-20120422033740/@comment-4347542-20120423200425

It uses an "unlimited skybox" so you can never hit the edge, but the planet will get larger/smaller depending on direction taken

see more on this fourm thread

http://forums.fishlabs.net/fishlabs-boards-english-20/galaxy-fire-2-124/galaxy-fire-2-iphone-ipad-126/4505-how-far.html