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Discovery Shakes Beliefs of Earth to the Core

Science & Tech  (tags: sun, earth, planets, space, astronomy, science )

- 2240 days ago -
I love this stuff... theres still so much we dont know. Exciting times!! For a century, scientists have assumed that the Earth has same chemical make-up as the sun. But this belief has been challenged by scientists at The Australian National University.

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LD B (40)
Tuesday April 3, 2012, 1:33 am
The writer's asserted premise re. "scientists have assumed that the Earth has same chemical make-up as the sun." is preposterous, demonstrating his lack of understanding of the subject, so as to raise grave doubts about his credibility.

Rohan d (0)
Tuesday April 3, 2012, 1:55 am
Hes a pretty well respected professor, can you substantiate your suggestion that his premise is preposterous? Im not saying you can or cant, Im an absolute novice with this stuff but am genuinely interested if what you say can be supported. It seems remarkable that an academic of his calibre, with so many published papers to his name would be guilty of what you suggest.

LD B (40)
Tuesday April 3, 2012, 2:23 am
My academic disciplines include Physics and Chemistry. It has been long known that our Sun has no chemical compounds, but is a giant fusion reaction confined by its own gravity.

The premise that "scientists have assumed that the Earth has same chemical make-up as the sun." is not a statement made by Professors Ian Campbell and Hugh O’Neill, but by the author of the cited article.

Said Professors say nothing re. the Sun, but rather address Earth's composition as compared to chondritic meteorites.

Yasmin Carolinay (7)
Friday May 4, 2012, 3:56 am
love to read this post.

Yasmin Carolinay (7)
Friday May 4, 2012, 3:57 am
good stuff.
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