Over the past six years an increasingly complex view of water inside and on the surface of the Moon has emerged. Lunar water has moistened sticky questions, and so renewed lunar exploration ...

The operation, over time, raised the water level to create Sun Moon Lake in its current form: round like the sun at its eastern end and curved like the crescent moon at its western end.

Some water also may be locked inside broken rock and dust on the lunar surface. Lunar Trailblazer is scheduled to perform a series of moon flybys and looping orbits over a span of several months ...

The planet’s water bulges on the side closest to the moon, and also on the side furthest from the moon, as it travels around the Earth. It takes the Moon just over 24 hours to complete one orbit ...

creating a crescent shape. During Saturday’s celestial event, the moon will appear to pass in front of the sun and partially block it, throwing a shadow over parts of Earth’s Northern Hemisphere.