Neutrinos are uncharged particles and are so light that, for decades, most physicists assumed they were actually massless. As if that weren't enough, they only interact with other matter via the weak force, which is only significant at short distances. Thus, for the most part, they generally pass through matter without incident—trillions go through your body every minute, but most of us will only have them hit anything a total of about three times in our entire lives.John Timmer, Ars Technica
So very cool… go look at the pics.
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