Matter cannot travel the speed of light. We infer the motion of matter, from energy signals. We cannot measure the motion of matter directly at distances beyond our solar system. Matter appearing to move faster than light, as inferred by an energy signal, would suggest their must be other ways to tweak energy signals, to create such optical illusions.

In a more formal way; If you plug velocity V>C, into the equations of special relativity, you end up dividing mass, time and distance by the square root of a negative number. This result are imaginary numbers. See below.