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As photons reach a black hole and begin fall in - is their speed increased as they go down (like a vacuum cleaner does to dust).

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marked as duplicate by Kyle Kanos, Brandon Enright, John Rennie, Jim, Qmechanic Apr 3 '14 at 19:21

This question was marked as an exact duplicate of an existing question.

Possible duplicates: , , and links therein. – Qmechanic Apr 2 '14 at 20:29
Also, photons travel at the speed of light, thus their speeds cannot increase. – Kyle Kanos Apr 3 '14 at 0:52