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

The hazardous insect abode was located near a set of tanks filled with liquid nuclear waste, although the team didn’t detect any leaks. Instead, experts believe the nest set off Geiger counters through what’s known as “onsite legacy radioactive contamination.

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,