When I grow up, I want to be a scientist. Scientists study the world around us. They ask questions and do experiments to find answers. I am very curious about space. I want to learn about stars, planets, and galaxies. Last month, I read a book about astronauts. The book said that astronauts train for many years before they can go to space. They must be strong and healthy. They also need to study math, science, and engineering. I know it is not easy to become a scientist or an astronaut, but I will work hard. Every day, I read science books and watch space videos online. My science teacher, Mr. Wang, always encourages me. He says curiosity and hard work are the keys to success. My parents also support my dream. They bought me a telescope for my birthday. Now I can look at the moon and stars at night. I believe that if I keep trying, my dream will come true one day. Maybe I will even discover a new planet!