More than three years ago, nearly 1 mile underground in South Dakota, in a cryogenic cylindrical chamber roughly 100 degrees Celsius below zero, something hit an atomic nucleus. The collision emitted a flash of light that was recorded by a detector as part of the LUX-ZEPLIN experiment, or LZ, which seeks to directly detect dark matter for the first time. LZ’s scientists believe that today’s particles and processes might not be enough to explain the interaction. They are now cautiously optimistic that they may have finally found dark matter. The LUX-ZEPLIN experiment is searching for dark matter, an invisible substance that makes up more than 85% of the mass of the universe but has never been directly detected. Read more through the link in bio. ✍️: Litong Deng 📸: Courtesy of Matthew Kapust/Sanford Underground Research Facility . . . #ucberkeley #dailycal #berkeleyresearch #darkmatter #berkeleylab