State environmental regulators will also fine the Energy Department up to $16 million for exceeding safe groundwater ...

Dressed in a lightweight, protective zipper-suit designed to keep dirt, insects and contaminants off his body, Dr. Michael Ketterer, a chemist, slowly lowered himself into an empty, abandoned water ...

Mr. Coghlan’s letter has not been fact-checked by the Los Alamos Reporter. In its own words, “The New Mexico Environment ...

On Aug. 9, 1945, 6-year-old Chiyoko Motomura was playing on a veranda at her family’s Nagasaki, Japan, home. Her mother, aunt and grandfather were weeding the rice fields while her grandmother was ...

The lab where Oppenheimer developed the atomic bomb is the linchpin in the United States’ effort to modernize its nuclear weapons. Yet the site has contended with contamination incidents, work ...