I know that in scenarios where QM and GR are both applicable the answerers come out ridiculous. I believe this may be one of those scenarios. It is also possible that I have some misunderstanding that leads to a ridiculous answer. My question is which of these is the case. A photon is traveling through empty space. A space ship is traveling in the opposite directions at such a velocity that the photon is extremely blue shifted. It is shifted to such a high frequency that in the ships frame of reference, it has enough energy to form an event horizon. The ship and the photon collide. Does the crew observe their ship being hit by a microscopic black hole traveling at the speed of light? How do they reconcile this with the idea that no massive object can travel at C? An observer wittinesses the collision from a nearby planet. In his frame of reference the photon is just a high energy photon. What does he observe and how can it be reconciled with the observations made by the crew of the ship?