Why doesn't light orbit the sun if space-time is curved by it ?
Given that according to general relativity the planets orbit the sun because they are following the curvature of space-time and its 'geodesics', shouldn't light do the same thing ? Except it doesn't. Because there is no such thing as the curvature of space-time, or space-time for that matter, or geodesics there of. Geodesics by definition can only exist on a surface, while space-time does not have any physical surface on which geodesics can physically exist and influence the trajectory of physical objects. If Einstein's theory of gravity was correct then light would have to orbit the sun like the planets do. Because it would have to follow the same 'geodesics' which makes the earth orbit the sun, or even orbit the earth like the moon does. Light cant just go in a straight line if space is so curved by massive objects that it makes planets go in circles instead of a straight line. Except it does. There is no light bending what so ever at the distance where th...