The speed at which stars "travel" through interstellar space can be very different. The average (typical, for example, for our Sun) is about two and a half hundred kilometers per second.
Fast? At first glance, yes, but by cosmic standards this is a rather low speed - scientists note, according to which stars are able to move almost at the speed of light.
If, for example, they are properly dispersed with the help of the gravitational forces of some particularly massive space object. Like a black hole.
“Even a relatively weak gravitational force is enough to give a star an above average speed. And if the luminary is at the mercy of such incredibly massive bodies as black holes, then their speed can come close to the speed of light, - quotes scientists from Harvard resource ToDay News Ufa.
Astronomers have not yet discovered stars moving at the speed of light in the real world, but mathematical modeling, taking into account a large number of factors, has shown that such fast stars can actually exist in the Universe. It remains only to find them and confirm the correctness of the theory.
Kolesnikov Andrey