Author Topic: What Is Dark Matter?  (Read 5809 times)

Re: What Is Dark Matter?
« Reply #30 on: September 18, 2014, 01:34:41 PM »
I wonder if dark matter interacts with itself like regular matter does.  I can't imagine that it would interact solely gravitationally otherwise wouldn't it just kind of clump together (or be extremely diffuse, one or the other.) ?
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Re: What Is Dark Matter?
« Reply #31 on: September 18, 2014, 04:13:27 PM »
I wonder if dark matter interacts with itself like regular matter does.  I can't imagine that it would interact solely gravitationally otherwise wouldn't it just kind of clump together (or be extremely diffuse, one or the other.) ?

We really don't know how this "stuff" works. There have been proposal such as MACHO's, WIMP's, in the past, or in the context of Beyond Standard Model, such particles as neutralinos, axions, photinos as possible candidate for DM. Unless new major discoveries, our understanding of DM will remain quite limited.