New theory on Earths Core

Dantheman62 · 01-07-2009, 05:46 AM

Jan. 6, 2009 -- It's a classic image from every youngster's science textbook: a cutaway image of Earth's interior. The brown crust is paper-thin; the warm mantle orange, the seething liquid of the outer core yellow, and at the center the core, a ball of solid, red-hot iron.
Now a new theory aims to rewrite it all by proposing the seemingly impossible: Earth has not one but two inner cores.
The idea stems from an ancient, cataclysmic collision that scientists believe occurred when a Mars-sized object hit Earth about 4.45 billion years ago. The young Earth was still so hot that it was mostly molten, and debris flung from the impact is thought to have formed the moon.
Haluk Cetin and Fugen Ozkirim of Murray State University think the core of the Mars-sized object may have been left behind inside Earth, and that it sank down near the original inner core. There the two may still remain, either separate or as conjoined twins, locked in a tight orbit

Core Question | Discovery News Video

Antaletriangle · 01-07-2009, 11:47 AM

Interesting; that could explain the magnetic field fluctuations if two cores are orbiting each other and both composed of nickel iron compounds.

giovonni · 01-08-2009, 01:00 AM

This kind of information, whether discovered or leaked (how be it> already known), really is extremely important to our existence and survival; Much more (in my opinion), than any off planet discovers? I am constantly amazed, how so much has been hidden> to us about this planet> especially, whats going on within the ocean deep and beyond?

As James Kirk said> EARTH the New Frontier, oops! I meant> SPACE (that between mankinds ears)!

01-07-2009, 05:46 AM	#1
Dantheman62 Avalon Senior Member Join Date: Sep 2008 Location: So. Cal. U.S. Posts: 4,205	New theory on Earths Core Jan. 6, 2009 -- It's a classic image from every youngster's science textbook: a cutaway image of Earth's interior. The brown crust is paper-thin; the warm mantle orange, the seething liquid of the outer core yellow, and at the center the core, a ball of solid, red-hot iron. Now a new theory aims to rewrite it all by proposing the seemingly impossible: Earth has not one but two inner cores. The idea stems from an ancient, cataclysmic collision that scientists believe occurred when a Mars-sized object hit Earth about 4.45 billion years ago. The young Earth was still so hot that it was mostly molten, and debris flung from the impact is thought to have formed the moon. Haluk Cetin and Fugen Ozkirim of Murray State University think the core of the Mars-sized object may have been left behind inside Earth, and that it sank down near the original inner core. There the two may still remain, either separate or as conjoined twins, locked in a tight orbit Core Question \| Discovery News Video

01-07-2009, 11:47 AM	#2
Antaletriangle Avalon Senior Member Join Date: Sep 2008 Location: U.K. Posts: 3,380	Re: New theory on Earths Core Interesting; that could explain the magnetic field fluctuations if two cores are orbiting each other and both composed of nickel iron compounds.

01-08-2009, 01:00 AM	#3
giovonni Avalon Senior Member Join Date: Sep 2008 Location: within my heart Posts: 1,209	Re: New theory on Earths Core This kind of information, whether discovered or leaked (how be it> already known), really is extremely important to our existence and survival; Much more (in my opinion), than any off planet discovers? I am constantly amazed, how so much has been hidden> to us about this planet> especially, whats going on within the ocean deep and beyond? As James Kirk said> EARTH the New Frontier, oops! I meant> SPACE (that between mankinds ears)!