8 years ago
Largest-ever dark-matter experiment poised to test popular theory
The world's most sensitive detector for dark matter — the mysterious stuff thought to make up 85% of matter in the Universe — was inaugurated on 11 November under the Gran Sasso mountain in central Italy. If the experiment, called XENON1T, finds dark matter, it will enter the history books. Meanwhile a failure to do so, say many theorists, would go a long way to ruling out a popular candidate for the elusive substance — a type of weakly interacting massive...
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