On Sat, Feb 3, 2018 at 3:49 PM, <mix...@bigpond.com> wrote:

When you look at the night sky, it is mostly black, so there don't seem to
> be as
> many photons around as would be needed to account for dark matter (or dark
> energy for that matter ;). Of course, I could be wrong, but that's my first
> impression.

Your eyes do not see the radio, infrared or microwave backgrounds, nor the
high-energy gamma rays that are present. :)


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