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Old 06-02-2008, 12:57 PM
MikeS MikeS is offline
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Join Date: Oct 2001
Location: New London, CT
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It'd help if you could link to some of the reports you're talking about there's probably some key phrases in them that us scientifically-inclined folks could use to better interpret what they're talking about.

That said, there are ways to get at the absolute amount of "baryonic matter" in the Universe. The CMB angular correlation studies of WMAP are indeed one of them. Another is Big Bang nucleosynthesis, which basically treats the early Universe like a big fusion reactor and figures out how much of the various isotpoes of helium, lithium, and so forth should have been created in the first few minutes of the Universe's creation. Too many baryons would cause the relative abundances of isotopes to shift around.