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.