Lunar water refers to the presence of water ice found on the surface and in the permanently shadowed craters of the Moon. This water is crucial for future lunar exploration, as it can be used for drinking, growing food, and even producing rocket fuel. Recent missions, including those by NASA and India's Chandrayaan-2, have confirmed the existence of water molecules on the lunar surface. The discovery of lunar water has significant implications for long-term human habitation and the potential for scientific research on the Moon.