Sci-fi essays usually covered topics such as future technology, alien life, time travel, and so on. The following is a science fiction essay from a junior high school student. I hope it can help: future world In the distant future, humans had developed advanced technology that could travel through time and space to explore the depths of the universe. We built a giant spaceship to explore the unknown planets and the depths of the universe. When our spaceship arrived in an unfamiliar galaxy, we discovered an terrestrial planet. The environment of this planet was very similar to Earth, but there was a creature that was completely different from humans living on it. These creatures were huge, with bright colors and sharp teeth, we couldn't help but call them "alien races". We decided to build a new home on this planet and began a long and challenging journey. We first need to consider how to get along with these alien races to avoid any conflicts and misunderstandings. We also need to learn how to exploit the planet's resources and build a sustainable ecosystem to ensure our future. In this new home, we've discovered a new source of energy that can convert Earth's energy into electricity and store it in the spacecraft's batteries. The use of this energy will completely change our dependence on energy, allowing us to replenish energy at any time and any place. We've also discovered a mysterious civilization living in a distant galaxy with technology beyond our understanding. We began to try to communicate with them and understand their culture and values, which allowed us to understand the mysteries of the universe more deeply. The future is full of unknowns and challenges, but we have the confidence and determination to explore the unknown planets and the depths of the universe to create a better future.