"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Geiger counters are used to detect and measure levels of radioactivity. Scientists invented the ...

This picture taken on April 5, 2020, shows a person holding a Geiger counter at the scene of a forest fire at a 30-kilometer (19-mile) Chernobyl exclusion zone, not far from the nuclear power plant. - ...

When most Americans plan vacations, they don’t think about radioactive zones. Yet, Chernobyl tourism has become something much deeper. I’ve walked those empty streets myself. It felt like stepping ...