Very interesting

For Aliens living 80 light years away, the World War is still occurring. For Aliens living 65 million light-years away, Dinosaurs are still roaming on Earth. For Aliens living 4.6 billion light years away, the solar system is yet to be formed. Indeed the universe is vast and expanding at a speed greater than the speed of light. We may never contact some advanced civilization because most galaxies are moving further away from each other. You can learn about how fast the universe is expanding from here.