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Reply #4: Thanks--I missed that. But it doesn't make sense... [View All]

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Peace Patriot

(1000+ posts) Send PM | Profile | Ignore

Tue Mar-11-08 05:02 PM
Response to Reply #3

4. Thanks--I missed that. But it doesn't make sense...

If the early universe had 10% neutrinos, and neutrinos have mass (and I don't know if it has firmly established that they do), how could the universe ever have expanded? The 1% amount for now would be consistent with continued expansion only if neutrinos do NOT have mass--as I understand it. 1% with mass is a big drag, in order words. And 10% with mass would likely have stopped the initial expansion. So, does this mean that neutrinos DON'T have have mass?

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