【宇宙ヤバイ】　月の内部に150kmもの水の層が存在か　地球の重力が原因で [475164351]

Earth's pull melts layer around Moon's core

Stuart Gary Monday, 28 July 2014 ABC

The power of Earth's gravity heats up a layer around the Moon's core keeping it liquid, suggests a new model of the lunar interior.
The findings, reported in the journal Nature Geoscience, have implications for our understanding of how the Moon evolved over time.

"This research lets us see a little bit deeper inside the Moon and gives us a better idea of what's going on there," says
one of the study's authors, Dr Sander Goossens from NASA's Goddard Space Flight Centre, and the University of Maryland.
Goossens and colleagues developed their new model of the Moon's interior,
to explain anomalies in the moon's orbit and its gravitational readings.

"Something solid rotates slightly differently to something with liquids inside it,
and those observations were giving us clues about the interior of the Moon," says Goossens.

Previous seismic data had hinted at a liquid region around the Moon's core, but the data hasn't always been clear,
and other studies using the same information, had produced models without the inclusion of a liquid lower mantle layer.

"This has always been an issue of discussion," says Goossens.
"But our model's inclusion of a liquid layer in the lower mantle provides a far better fit for all the observations," he says.

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【宇宙ヤバイ】 月の内部に150kmもの水の層が存在か 地球の重力が原因で [475164351]

【宇宙ヤバイ】　月の内部に150kmもの水の層が存在か　地球の重力が原因で [475164351]