Solar Wind: A Constant Replenishment of Lunar Water

A new experiment suggests that the sun is continuously replenishing water on the lunar surface. Scientists simulated the effects of solar wind on lunar soil samples and found that hydrogen ions from the solar wind combine with oxygen in the soil to form water molecules. Even when the samples were heated to typical lunar dayside temperatures, the water molecules decreased, but reappeared after cooling and subsequent exposure to simulated solar wind, indicating a renewable water cycle. This discovery has significant implications for future lunar exploration and resource utilization.