To add to the questions about the sun, what keeps it up, and why does it circle as it's believed ? According to the universal acceleration theory, it should come crashing down to the earth unless there is something holding it up. According to Newton, it should fly off in a straight line unless there is something keeping it swinging round in a circle (think of a ball on a bit of string).
Furthermore, we know the sun rotates with a period of about 25 days as we can observe sunspot patterns. Therefore we know that is a sphere. Therefore, is radiates light equally in all directions, and as such, it would be visible 24 hours a day unless there was some sort of lamp shade. Is there a theory about what form this shade takes, and why is has never been observed ?