Most, if not all, of the crew members of a Japanese fishing boat inundated by radioactive fallout from a U.S. hydrogen bomb ...

Deep in Kazakhstan lies the Semipalatinsk Test Site, one of the most heavily nuked places on Earth. For decades, the Soviet Union detonated 456 nuclear and hydrogen bombs there while surrounding ...

Hydrogen bombs turned remote coral atolls into proving grounds, and the blast waves have never really stopped. In the Marshall Islands and across the wider Pacific, the fallout still shapes landscapes ...

Some analysts questioned whether Wednesday's test was indeed of a hydrogen device. North Korea said it had successfully conducted a test of a miniaturised hydrogen nuclear device on Wednesday morning, ...