Re: Moon was produced by head-on collision?

From	The Starmaker <starmaker@ix.netcom.com>
Newsgroups	sci.astro, sci.physics
Subject	Re: Moon was produced by head-on collision?
Date	2016-01-31 09:44 -0800
Organization	Netfront http://www.netfront.net/
Message-ID	<56AE47FB.A56@ix.netcom.com> (permalink)
References	<dPqdnSyaPpEcxjDLnZ2dnUU7-b3OydjZ@giganews.com>

Cross-posted to 2 groups.

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Yousuf Khan wrote:
> 
> Moon was produced by head-on collision | Astronomy.com
> http://www.astronomy.com/news/2016/01/moon-was-produced-by-head-on-collision
> 
> The Theia Theory used to talk about a glancing blow between the early
> Earth and a Mars-sized Theia, perhaps at 45 degrees. New data suggests
> that Theia might have actually hit head-on with the Earth. That's
> because the percentage of Oxygen 16/17/18 isotopes between the Earth and
> Moon are nearly identical, indicating that they came from the same source.
> 
> My question is, if the isotopic evidence which was used to create the
> Theia Hypothesis in the first place, due to a previously perceived
> difference in isotopic abundances, so now that that isotopic evidence
> has disappeared, why keep the Theia Hypothesis? There were other
> theories prior to that, which were discarded due to the isotopic evidence.
> 
>         Yousuf Khan


The truth is...the origin of our solar system is...unknown.



So, how everthing got put together is unknown...including the moon.

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Thread

Moon was produced by head-on collision? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-01-30 19:55 -0500
  Re: Moon was produced by head-on collision? Sam Wormley <swormley1@gmail.com> - 2016-01-30 22:17 -0600
  Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-01-31 07:25 -0800
  Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-01-31 09:44 -0800
    Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-01-31 17:02 -0800
    Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-01-31 23:10 -0800
      Re: Moon was produced by head-on collision? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-02-01 03:13 -0500
        Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 10:36 -0800
  Re: Moon was produced by head-on collision? willner@cfa.harvard.edu (Steve Willner) - 2016-02-01 22:27 +0000
    Re: Moon was produced by head-on collision? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-02-01 19:44 -0500
      Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 23:12 -0800
        Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-02-02 05:57 -0800
        Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-02 15:59 -0800
          Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-02 22:14 -0800
            Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-03 14:23 -0800
          Re: Moon was produced by head-on collision? Martin Brown <|||newspam|||@nezumi.demon.co.uk> - 2016-02-04 11:40 +0000
            Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-04 11:35 -0800
              Re: Moon was produced by head-on collision? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-02-05 03:18 +0000
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-04 20:42 -0800
                Re: Moon was produced by head-on collision? Martin Brown <|||newspam|||@nezumi.demon.co.uk> - 2016-02-05 08:46 +0000
                Re: Moon was produced by head-on collision? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-02-05 15:26 +0000
                Re: Moon was produced by head-on collision? R Kym Horsell <kym@kymhorsell.com> - 2016-02-05 15:39 +0000
                Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-02-05 12:55 -0800
                Re: Moon was produced by head-on collision? willner@cfa.harvard.edu (Steve Willner) - 2016-02-05 21:48 +0000
                Re: Moon was produced by head-on collision? R Kym Horsell <kym@kymhorsell.com> - 2016-02-05 22:31 +0000
                Re: Moon was produced by head-on collision? Martin Brown <|||newspam|||@nezumi.demon.co.uk> - 2016-02-05 22:50 +0000
                Re: Moon was produced by head-on collision? willner@cfa.harvard.edu (Steve Willner) - 2016-02-11 19:44 +0000
                Re: Moon was produced by head-on collision? Sam Wormley <swormley1@gmail.com> - 2016-02-06 12:41 -0600
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-06 01:20 -0800
                Re: Moon was produced by head-on collision? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-02-06 18:37 +0000
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-06 12:53 -0800
                Re: Moon was produced by head-on collision? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-02-07 01:28 +0000
                Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-02-07 07:06 -0800
                Re: Moon was produced by head-on collision? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-02-08 02:58 +0000
                Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-02-08 06:35 -0800
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-07 13:54 -0800
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-07 15:11 -0800
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-07 16:16 -0800
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-08 21:36 -0800
                Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-09 11:37 -0800
            Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-04 12:39 -0800
      Re: Moon was produced by head-on collision? willner@cfa.harvard.edu (Steve Willner) - 2016-02-03 22:16 +0000
        Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-03 22:22 -0800
          Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-03 22:38 -0800
            Re: Moon was produced by head-on collision? The Starmaker <starmaker@ix.netcom.com> - 2016-02-04 11:46 -0800
              Re: Moon was produced by head-on collision? the_shadow <the_shadow@xcoxx.net> - 2016-02-06 07:30 +0000
          Re: Moon was produced by head-on collision? dlzc <dlzc1@cox.net> - 2016-02-04 07:52 -0800

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