[SunkenCiv]

How did the moon form? The "big whack" theory suggests that a Mars-size object slammed into the hot early Earth. The debris that was ejected went into Earth's orbit and gradually came together, forming the moon, the widely accepted theory says. A new lunar-rock study suggests that the moon's insides are a lot like Earth's -- new evidence that the theory of the big whack is on the right track. [Illustration courtesy NASA]

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[SunkenCiv]

New evidence for the Moon’s soft middle
New Scientist | 14 February 2002 | Will Knight
Posted on 12/27/2004 2:29:35 PM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1309193/posts

[SunkenCiv]

Moon Has Iron Core site:freerepublic.com

Google

lunar Core site:freerepublic.com

Google

[SunkenCiv]

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[Keli Kilohana]

“It’s huge compared to the moons we see around other planets, so it has always been suspected that there was something strange in its origin.”

“Strange in its origin?” That’s because it was created.

[Wally_Kalbacken]

I must have been out of town that weekend.

[Drango]

Bush’s fault!

[Dallas59]

I knew an ole chic once that had a an iron core. Cold.

[Captain Beyond]

bump

[Darksheare]

Chewy caramel center bump.

[John123]

created deep in the moon's mantle

I wasn't aware that the moon had volcanoes?

[GOP Poet]

Cool.

[LiberConservative]

"Big whack"

I got a few of those from my dad when I was a kid.

[SunkenCiv]

an update of sorts, courtesy of Fred Nerks:

new gravity map of the Earth