The man leaves Lisa: That haole is nuts. Kauai does sound beautiful though. I've always wanted to hike the Kalalau Trail. Jun: I read about that! Cliffs and waterfalls and fruit trees! I have a couple of weeks. Yeah, let's do it! Lisa: OK. I think I can get the time off. But let's explore all of Oahu first. Jun: Cool. Let's go to Pearl Harbor later today then. Lisa: Alright. But let's play a little first. If you've not going to get in the water, you at least better get in the air. [points at a parasailer]
Just like people, stars also have lifespan. A star keeps the same color and shape for most of its life. But when it gets very old, it swells into what is called a red giant. After reaching this stage, some stars begin to cool down and grow dim. Other stars explode into spectacular supernovas.
