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Signs Of Water Are Found On The Moon... See How Much

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Mandy Esser
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« on: September 24, 2009, 11:09:59 am »

Moon Water: Probes Find H20 Traces In Dirt
SETH BORENSTEIN | 09/23/09 05:42 PM | 



WASHINGTON — The moon isn't the dry dull place it seems. Traces of water lurk in the dirt unseen.

Three different space probes found the chemical signature of water all over the moon's surface, surprising the scientists who at first doubted the unexpected measurement until it was confirmed independently and repeatedly.

It's not enough moisture to foster homegrown life on the moon. But if processed in mass quantities, it might provide resources – drinking water and rocket fuel – for future moon-dwellers, scientists say. The water comes and goes during the lunar day.

It's not a lot of water. If you took a two-liter soda bottle of lunar dirt, there would probably be a medicine dropperful of water in it, said University of Maryland astronomer Jessica Sunshine, one of the scientists who discovered the water. Another way to think of it is if you want a drink of water, it would take a baseball diamond's worth of dirt, said team leader Carle Pieters of Brown University.

"It's sort of just sticking on the surface," Sunshine said. "We always think of the moon as dead and this is sort of a dynamic process that's going on."

The discovery, with three studies bring published in the journal Science on Thursday and a NASA briefing, could refocus interest in the moon. The appeal of the moon waned after astronauts visited 40 years ago and called it "magnificent desolation."

The announcement comes two weeks before a NASA probe purposely smashes near the moon's south pole to see if it can kick up buried ice. Over the last decade, astronomers have found some signs of underground ice on the moon's poles. But this latest discovery is quite different. It finds unexpected and pervasive water clinging to the surface of soil, not absorbed into it.

"It is drier than any desert we have here," Sunshine said.


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