Elon Musk, the founder of SpaceX, has proposed the idea of building a self-sustaining city on the Moon within less than a decade. This vision aligns with broader goals in space exploration, where creating permanent human settlements beyond Earth is seen as a crucial step toward long-term space colonization. Musk's plan is part of a larger initiative called the "Lunar City," which would serve as a base for future missions to Mars and other destinations in the solar system. A recent study published in a scientific journal emphasizes the importance of assessing the Moon's water resources before embarking on large-scale construction projects. Water is a critical resource for sustaining human life, as it can be used for drinking, agriculture, and even the production of rocket fuel through electrolysis. Understanding the availability and accessibility of lunar water could significantly influence the feasibility and cost of establishing such a city. The Moon's water is primarily found in the form of ice in permanently shadowed craters at its poles. Scientists have detected these deposits using orbiting spacecraft and robotic landers, but the exact quantities and locations remain uncertain. Determining how much water is available and how easily it can be extracted is essential for planning infrastructure like habitats, power systems, and life support technologies. While Musk's timeline for a lunar city may seem ambitious, it reflects the rapid advancements in space technology and private-sector involvement in space exploration. However, experts caution that such a project would require international collaboration, significant investment, and further scientific research to ensure it is both sustainable and safe. The upcoming missions planned by NASA, private companies, and other space agencies will play a key role in gathering the necessary data to support such a bold vision.