Neutrinos are everywhere, and yet their presence is rarely felt. Scientists have assumed for decades that, because they interact so little with matter, neutrinos must lack any measurable mass. But recent experiments have shown that these "ghostly" particles do in fact hold some weight. Ever since, the hunt has been on to pin down a neutrino's mass--a vanishingly small measurement that could have huge implications for our understanding of how the universe has evolved.
Neutrinos are everywhere, and yet their presence is rarely felt. Scientists have assumed for decades that, because they interact so little with matter, neutrinos must lack any measurable mass. But recent experiments have shown that these "ghostly" particles do in fact hold some weight. Ever since, the hunt has been on to pin down a neutrino's mass--a vanishingly small measurement that could have huge implications for our understanding of how the universe has evolved.
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