Candidates for dark matter particles bite the dust

Most sensitive experiment yet determines that earlier findings were artifacts

By Andrew Grant, 19:20 PM November 2, 2013

The elusive substance that makes up more than a quarter of the universe is now even more of a mystery. A supersensitive search for dark matter has come up empty, researchers announced in an October 30 press conference, casting serious doubt on the findings of experiments that have claimed detections or hints of dark matter particles.

Dark matter is the ultimate tease: Scientists know it permeates the universe because of its gravitational influence on distant galaxies, but they can’t see it and...

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