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New Theory on how our Earth and Moon were Formed

 
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PhastPhred
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Joined: 22 Mar 2006
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Location: Northwest AR (USA)

PostPosted: Thu Jan 03, 2013 11:22 pm    Post subject: New Theory on how our Earth and Moon were Formed Reply with quote

http://www.nasa.gov/topics/solarsystem/features/moon_formation.html


NASA Lunar Scientists Develop New Theory on Earth and Moon Formation
10.30.12

New research funded by NLSI theorizes that our early Earth and moon were perhaps created in a different manner than has previously been believed. New research, funded by the NASA Lunar Science Institute (NLSI), hypothesizes that our early Earth and moon were both created together in a giant collision of two planetary bodies that were each five times the size of Mars.

This new hypothesis about how Earth’s moon formed is challenging the commonly believed “giant impact hypothesis,” which suggests that Earth's moon formed from a colossal impact of a hypothetical planetary embryo, named Theia, with Earth, early in our Solar System's history.
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JumpinJohnny
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Joined: 28 Mar 2013
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Location: Western New Hamster

PostPosted: Thu May 09, 2013 10:31 pm    Post subject: I'm cunfuzzed. Reply with quote

I had thought that the original theory was based on several facts that would otherwise be unaccounted for. One, is that Earth has a huge iron core that is bigger than any other planet would form without combining with another smaller planet ... (lucky for life to have magnetic fields created by the movement of the core to generate protection). and Two, being that the Moon seems to have rock identical to the Earth's crust. I am also confused by the slight discrepancy in adding up two planets each five times bigger than Mars to equal Earth + Moon. Good thing I'm just a stupid carpenter; geometric math is much easier (spiral staircases), than making sense out of theoretical planetary collisions.
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PhastPhred
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PostPosted: Fri May 10, 2013 12:10 am    Post subject: Reply with quote

Maybe we can just ask the Doctor...

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JumpinJohnny
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Joined: 28 Mar 2013
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Location: Western New Hamster

PostPosted: Sat Jun 01, 2013 10:17 pm    Post subject: Reply with quote

PhastPhred wrote:
Maybe we can just ask the Doctor...


I'll wait for Doctor # 12 coming in 2014.
Matt Smith as #11 was not too bad... is departing after a "Christmas Special".
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