Don't some hold that the fact that no spiral galaxy arms have been seen wound up more than 3 times limit their age to not more than 200 million years?!

http://news.bbc.co.uk/hi/english/sci...00/1813648.stm

I would have sworn we were discussing this galaxy somewhere other than this thread. It appears that the galaxy has been involved in a collision--there are actually arms that point in both directions.

O, now I remember. Different board. Hi JW.

<font size=-1>[Fixed senior moment]</font>

<font size=-1>[ This Message was edited by: GrapesOfWrath on 2002-02-13 04:10 ]</font>

<a name="20020213.4:19"> page 20020213.4:19 aka Galaxy Age
On 2002-02-13 04:03, GrapesOfWrath wrote: To: 4:20:20 A.M.
I would have sworn we were discussing this galaxy somewhere other than this thread. It appears that the galaxy has been involved in a collision--there are actually arms that point in both directions.

O, now I remember. Different board. Hi JW.

<font size=-1>[Fixed senior moment]</font>
i've always thought that the horns of Galaxies
should indicate age just like Goat HORNS do
[/quote]

And car horns should indicate the age of the driver. That way you'd know whether you have to get out of the way or not.
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That's based on a misunderstanding of galactic arms: the current theory is that they're pressure waves, not bands of stars grouped together. So there's no "winding up" involved.

__________________
Everything I need to know I learned through Googling.

Ergo the universe is 10000 years old and the earth is its stationary center?

If these people do hold this, they need to educate themselves on what a spiral arm is, because they are wrong.

They can even read an article I wrote on this very issue.