The light side of dark matter
New technology and new thinking are pushing the dark matter hunt to lower and lower masses.
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New technology and new thinking are pushing the dark matter hunt to lower and lower masses.
Ghostlike subatomic particles called neutrinos could hold clues to some of the greatest scientific questions about our universe: What extragalactic events create ultra-high-energy cosmic rays? What happened in the first seconds following the big bang? What is dark matter made of?