[Superman]

Scientists are reporting something exciting today. Gamma Ray bursts have allowed them to see the most distant object ever viewed in the Universe. A star exploded, spewing gamma rays, and that explosion is said to have occurred 13 billion light-years away. Scientists are also saying that this explosion occurred when the Universe was only 600 million years old.

Well, if matter cannot travel faster than the speed of light, then how did two objects (Earth and this exploding star) become 13 billion light-years apart in a period of only 600 million years?