South Dakota

Scientists led by UCLA astrophysicist Alvine Kamaha, through the LUX-ZEPLIN collaboration, are searching for dark matter from a detector operating nearly a mile underground in South Dakota. Roughly 85% of all matter in the universe remains undetected by standard instruments, and the experiment tracks rare particle interactions that could reveal it. The effort is drawing attention online among space and physics enthusiasts.

Lee Enterprises has acquired the Argus Leader, the daily newspaper of Sioux Falls, South Dakota, as part of a four-newspaper transaction. The deal adds the publication to Lee's large portfolio of regional US papers and continues the industry pattern of consolidation among local newspaper chains. Further financial details of the transaction have not been reported.