Four radioactive wasp nests may indicate previously undetected environmental contamination at the decades-old Savannah River Site. Here’s what to know.

A bizarre discovery was made at the site of a facility that made key parts for nuclear bombs, after workers in South Carolina uncovered a radioactive wasp nest. Employees conducting routine radiation monitoring at the Savannah River Site near Aiken discovered a wasp nest on July 3 attached to a post near liquid nuclear waste storage tanks,