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Scientists detect mysterious signal nearly 1 mile underground in South Dakota
Yahoo • • general
Key Points:
- Scientists at the LUX-ZEPLIN (LZ) experiment, located nearly a mile underground in South Dakota, detected a particle interaction that could potentially be dark matter, a substance thought to comprise about 85% of the universe's mass but remains undetected directly.
- The unusual event was recorded in a region of the detector designed to identify weakly interacting massive particles (WIMPs), a leading dark matter candidate, with minimal interference from known background signals.
- The LZ experiment uses 10 tonnes of ultra-pure liquid xenon and extensive shielding to block cosmic rays and other particles, enhancing its sensitivity to rare particle interactions.
- Researchers estimate only a 0.5% chance that the detected event is due to known background phenomena, but emphasize that more data and repeated observations are needed before confirming any discovery.
- Ongoing data collection and analysis will determine whether similar events occur, potentially strengthening the evidence for dark matter or leading to alternative explanations for the signal.
