Speed of Light
Ah! Space-Time is the reason. It sounds as if it was invented to explain the unexplainable!!! Another thought, if light is a particle then it has mass, so the gravitational field around the star attracts it. On the other hand if it is a wave, then it is refracted. Of course if we say that it is both, then the problem is solved; or is it? Wikipedia seems to have a bit each way.
Ernie.
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