Yes, there is water on the Moon.
Twenty years ago, evidence of frost-coated regions near the Moon’s poles was greeted with surprise and skepticism. Ten years ago, a NASA instrument aboard India’s Chandrayaan-1 space probe greatly boosted the case for water ice on the Moon. Then two weeks ago, a much deeper analysis of the Chandrayaan-1 data validated the surprise and ended the skepticism: Some permanently shadowed “cold-trap” craters near the lunar poles clearly do contain regions that are up to 30 percent water ice.
Lunar ice could be a precious resource for future explorers, a potential source of drinking water and oxygen as well as raw material for rocket fuel. The Moon’s poles are now beckoning targets for further exploration. There’s also a broader message to the discovery of ice on the Moon. Ice, frost, and snow are ubiquitous all across the solar system. Water ice is especially abundant, ...