A detector buried nearly a mile underground records an unexplained particle interaction in the hunt for dark matter
Scientists at the LUX-ZEPLIN experiment have detected an unexplained particle interaction that could potentially hint at the existence of dark matter. While the finding is statistically significant, it does not yet meet the threshold required to claim a formal scientific discovery.
Why it matters
Understanding dark matter is one of the most significant challenges in modern physics, as it constitutes the vast majority of matter in the universe.
Scientists working on the LUX-ZEPLIN (LZ) dark matter experiment have identified a single particle interaction that they have struggled to explain using any known background process. The detector operates nearly a mile underground at the Sanford Underground Research Facility in South Dakota, US, where it searches for signs of dark matter.The result is the most compelling hint of dark matter reported by the experiment so far, although it does not meet the statistical threshold required to claim a discovery. Dark matter is thought to make up around 85% of all matter in the universe, yet it has never been directly detected.
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