Moon richer in water than once thought

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The Moon was believed to be bone dry until around a decade ago, when a series of findings suggested that our nearest celestial neighbour had traces of water ice in permanently-shadowed craters at its polar regions.

PARIS - There may be far more water on the Moon than previously thought, according to two studies published Monday raising the tantalising prospect that astronauts on future space missions could find refreshment - and maybe even fuel - on the lunar surface.

The new study was able to "unambiguously" distinguish the spectral fingerprint of molecular water in a sunlit area, said lead author Casey Honniball, of the Hawaii Institute of Geophysics and Planetology. They found a water concentration of about 100 to 400 parts per million at Clavius crater, one of the largest to be visible from Earth.

"If you were standing on the Moon near one of the poles, you would see a whole 'galaxy' of little shadows speckled across the surface," said lead author Paul Hayne of the Department of Astrophysics at the University of Colorado.

 

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