Moon May Once Have Hosted Water
Study undermines theories of its creation
By Matt Cantor, Newser User
Posted Feb 18, 2013 12:08 PM CST
The moon appears to have once hosted water.   (Shutterstock)

(Newser) – Scientists' theories on how the moon developed may not hold water—because it seems that the moon itself once did. That's what researchers are saying after new analysis of Apollo mission moon rocks, the Los Angeles Times reports. The widely-accepted story is that the moon is the result of debris from Earth, knocked off after the planet was hit by a Mars-sized object. But heat involved in the process would have made the moon an extremely dry place.

Previous signs of water on the moon, found in glass beads, were thought to have come from elsewhere. But a new study of the rocks finds a lot more water than expected—about 6 parts per million. The researchers say this could be "native" water, the result of an ancient magma ocean on the moon. "It opens up quite a mystery as to how the moon came through what we think was a very hot genesis process with this much water," says an outside expert. That water could also aid future people who arrive on the moon for a "more permanent" stay.

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Feb 18, 2013 6:00 PM CST
Well, just a sec, here. If the moon were part of an Earth with seas at the time of whatever impact broke it free and left it in orbit wouldn't you exPECT it to have water on it? I mean, look at the planet today. If such a collision were to occur and such a mass were to be ejected, wouldn't THAT have a LOT of water on it SOMEwhere? ... and even if the impact occurred before the Earth had cooled enough to have actual liquid water oceans, there was still a LOT of water in vapor form around, and THAT would have been included in the "ejecta," wouldn't it?
Feb 18, 2013 3:16 PM CST
It will be wonderful to be on the moon during a Full Earth.
Feb 18, 2013 12:56 PM CST
I knew their "mars sized objects hit earth" theory was full of shit.