Dark-Matter Mystery Nears Its Moment of Truth
2013
Cho, Adrian
At a meeting last week, physicists working with an ultrasensitive particle detector deep underground reported three blips that could be particles of dark matter, the mysterious stuff whose gravity binds the galaxies, bumping into atomic nuclei. Other physicists are taking note because the three events are cleaner and more persuasive than earlier ones this detector has recorded. If dark matter has been spotted, than a lightweight version of a so-called weakly interacting massive particle should show up in other experiments in a year or so. Still, the events should be viewed with caution, physicists say.
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