The Meaning of Life, the Universe, and Everything.
yeah most games use a sky box if u look at the sky u can c the square outline sometimes. but im pretty sure minecraft has skysphere with the stars on one side. if that can be edited think of the sick night skies that can be made and a fog color changer would be nice. i 3d model and texture dont know crap about coding and modding =( i fail. . .
Typically referred to as the sky box, it is the texture that is used for the sky.