will the sun ever die?

The answer is yes, but don't worry it won't happen any time soon. In fact Astronomers say it will only happen in 5 billion years which is a very long time. It will happen because the sun will use up all it's gas fuel. Also since it's going to happen in 5 billion years the technology will have become better and (like in star wars) we might be able to travel at the speed of light and get to other galaxy's plus human's will evolve and our lungs might evolve so we can breathe in space.