Re: [Phys-L] dark matter

[Richard Tarara <rtarara@saintmarys.edu>]

Let me suggest you look here:

symmetry magazine <info@symmetrymagazine.org>

If you subscribe (free) to this Fermi Lab/SLAC online magazine you can 
get (at a level that even we experimental physicists can understand) 
lots of info on all the major work going on around the world.  There is 
a lot of stuff on dark energy and dark matter (although nobody really 
knows what either is) but things like how we know just what percentages 
of matter, energy, dark matter, and dark energy make up our universe.  
Lots on the experiments designed to answer questions about the dark stuff.

rwt

On 8/17/2016 9:47 PM, Anthony Lapinski wrote:
> The universe is confusing me, and I am no expert on dark matter and dark
> energy. I thought dark matter was "discovered" to explain the rotation of
> galaxies. So isn't it just matter that is not warm enough (like humans) to
> be seen with an optical telescope? But it still has gravitational effects
> like ordinary matter. I'm reading online that dark matter is a different
> kind of matter altogether, or is it just fundamental particles that can't
> be touched like ordinary matter? Does anybody really understand this?
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--
Richard Tarara
Professor Emeritus
Saint Mary's College

free Physics educational software
http://sites.saintmarys.edu/~rtarara/software.html