Space exploration has always fascinated mankind, with its vastness and mysteries that are yet to be unraveled. One of the most crucial aspects of space exploration is the concept of in situ resource utilization (ISRU), which involves extracting and using resources found in space to sustain human missions. Space-based in situ resource utilization holds immense potential for future space exploration missions, enabling astronauts to become more self-sufficient and reducing the need for resupply missions from Earth. In this article, we will delve into 16 intriguing facts about space-based in situ resource utilization, shedding light on its significance, challenges, and potential applications. Get ready to embark on a journey through the captivating world of space-based in situ resource utilization and discover how it can revolutionize the future of space exploration.