Neutrinos Have Been Detected With Such High Energy That The Standard Model Can’t Explain Them

Although neutrinos are mysterious particles, they are remarkably common. Billions of neutrinos pass through your body every second. But neutrinos rarely interact with regular matter, so detecting them is a big engineering challenge. Even when we do detect them, the results don’t always make sense. For example, we’ve recently detected neutrinos that have so much energy we have no idea how they are created.

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I think its coffee, they have too much coffee on their way here.

> Although neutrinos are mysterious particles, they are remarkably common

Well said. Yes.

By Steven Fry was wrong when he said in QI that neutrinos are the most common particles in the solar system. Photons are more common, just. I have yet to see an explanation of why the number of neutrinos in the universe is so startlingly similar to the number of photons in the universe.