Displaying items by tag: water on moon

Scientists have long speculated about significant quantities of hydrogen detected in the polar regions of our moon. Where did it come from? Were the moon's poles once covered in ice, as are our own? If so, is any of that water still present? Recent NASA findings may have answered some of these questions, with instruments on three spacecraft detecting molecules of water near the lunar poles, and while the quantities are small, they are greater than predicted.