Xray troubles on a Xray satelite

In the computer was a story about a xray that took 5 Billion years to reach us. A star exploded and the net result was the amount of Xrays that it sent out into space. It hit our satelite and even shut it down for a little while. This is interesting because it does give us an idea how large is the space that Stars and of Course Galaxies are in Space. I think I read somewhere that our Galaxie is a 100 million lite years in Diameter. I will have to study even for myself to see if that is right. I guess if we are to go to Space we will have to find some way of going of going faster than speed of light. Light they did in Star Wars, etc. This was really interesting to me as I have almost wondered how we wouldbe able oh well.go to Space. Just think there are a Pair Satelites than have been going out - I believe 15 years and we are lucky that we are still in Communication with them. They do not have much power but we have some super antennas. About 50 or so years ago I drank with engineers from what was Lockheed Aircraft and some of them was taking correspondence Courses from Werner Von Braum. It was hard to remember but we discussed the Red light and how they figured Distances. I believe they used at that time FM Detectors to figure the distance. It was the shift in the Frequency that read. The discussion was how Satelites went to Orbit by going around the Earth in Orbit. In a sense I have led an interesting life and in my age I believe it has kept me going all these years. Enough of memories and learning curves.But I thought that the Xray took 5 billion years to reach Earthr and it was strong enough to Black out one of our satelites for a little while.