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]
![Moon Has Iron Core, Lunar-Rock Study Says](http://news.nationalgeographic.com/news/bigphotos/images/070111-moon-core_big.jpg)
1 posted on
12/06/2008 8:51:39 AM PST by
SunkenCiv
2 posted on
12/06/2008 8:52:21 AM PST by
SunkenCiv
(https://secure.freerepublic.com/donate/_______Profile finally updated Saturday, December 6, 2008 !!!)
Moon Has Iron Core site:freerepublic.com
Google
lunar Core site:freerepublic.com
Google
3 posted on
12/06/2008 8:52:23 AM PST by
SunkenCiv
(https://secure.freerepublic.com/donate/_______Profile finally updated Saturday, December 6, 2008 !!!)
To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aristotleman; Avoiding_Sulla; BBell; BenLurkin; ...
4 posted on
12/06/2008 8:52:27 AM PST by
SunkenCiv
(https://secure.freerepublic.com/donate/_______Profile finally updated Saturday, December 6, 2008 !!!)
To: SunkenCiv
“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.
6 posted on
12/06/2008 8:56:08 AM PST by
Keli Kilohana
(Editor, ZARR CHASM CHRONICAL [sic], Sore, WV)
To: SunkenCiv
I must have been out of town that weekend.
To: SunkenCiv
8 posted on
12/06/2008 9:00:25 AM PST by
Drango
(A liberal's compassion is limited only by the size of someone else's wallet.)
To: SunkenCiv
I knew an ole chic once that had a an iron core. Cold.
9 posted on
12/06/2008 9:03:09 AM PST by
Dallas59
(Not My President)
To: SunkenCiv
11 posted on
12/06/2008 9:08:55 AM PST by
Captain Beyond
(The Hammer of the gods! (Just a cool line from a Led Zep song))
To: SunkenCiv
Chewy caramel center bump.
13 posted on
12/06/2008 9:11:31 AM PST by
Darksheare
(Admin Moderator: Something like a GRUE... on performance enhancing substances.)
To: SunkenCiv
created deep in the moon's mantleI wasn't aware that the moon had volcanoes?
14 posted on
12/06/2008 9:19:27 AM PST by
John123
(The US may be going down the drain, but everyone else will drown first...)
To: SunkenCiv
18 posted on
12/06/2008 9:33:15 AM PST by
GOP Poet
To: SunkenCiv
"Big whack"
I got a few of those from my dad when I was a kid.
an update of sorts, courtesy of Fred Nerks:
new gravity map of the Earth
![new gravity map of the Earth](http://news.bbc.co.uk/olmedia/1665000/images/_1668872_lumpyearth300.jpg)
32 posted on
10/16/2010 7:50:43 PM PDT by
SunkenCiv
(The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
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