# Experimental evidence for the relic neutrinos

What are the experimental (indirect) evidence for the cosmic neutrino background? Where can I read more about this?

The discussion on the wikipedia page about the C$\nu$B seems to me to be more about the evidence of the number of generation of neutrinos, than about the cosmic neutrino background...

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There is no direct evidence at this time. We don't even know how to begin. –  dmckee Apr 12 '14 at 15:37