NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Lunar water maps. Coloured maps showing water in the upper 50 centimetres of soil on the Moon's surface. The Moon's northern hemisphere is at left, with the southern one at right. The Moon's surface is colour-coded to show the amount of water present. Pink and purple represent a large amount of water, while red and yellow indicate a relatively small amount. The water is seen concentrated at the poles (centre of each image), particularly the northern one. Any water on the Moon is vital to future manned missions there. These images were created using data from the Neutron Spectrometer on board the Lunar Prospector spacecraft in orbit around the Moon.
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