As space technology has rapidly developed in recently years, I believe that many people will be sent to the Moon or Mars as visitors soon. I guess that Elon Musk's dream is to go to explore other planets, not to make much more money to be the richest man in the world. I like him! When we look around the world, many people pay much attention to developing chips to update all our electronic devices and apps. It's amazing! Meanwhile, some other people look up to the sky and want to know the secrets hidden in deep space! But rockets are the only kind of transportation we can use to travel to space. Maybe rockets are the fastest invention humanity has created so far, but compared to the speed of light, it's much slower! In that case, we need more professionals to find new methods to reduce the time we spend on space travel! This will be a great career field in the future, unless if we lose interest in exploring space!