Dear Sam Wormley:

On Thursday, May 9, 2013 12:05:49 PM UTC-7, Sam Wormley wrote:
On 5/8/13 7:11 PM, Yousuf Khan wrote:

....
If this is true, then it's making it more and
more unnecessary to look for exotic WIMPs and other
such things to explain dark matter, as dark
matter may simply be this invisible gas between
galaxies.

Not necessarily--it would be hard to account for
the mass necessary required for the observed
dynamics with just undetectable baryonic matter.

http://www.spitzer.caltech.edu/news/...Lonesome-Stars

No, it seems to me, we just need to look in the Dark to avoid seeing Dark Matter. Because each new way we look we see more normal matter than expected.

http://www.dailymail.co.uk/sciencete...tar-orbit.html
http://www.livescience.com/22852-bla...telescope.html
http://iopscience.iop.org/2041-8205/756/1/L8/

Dark Matter is a placeholder for ignorance. There is *nothing* to it, that observation cannot fix.

David A. Smith