But few people know its secret. In September 1957, the Mayak nuclear plant exploded - the first major nuclear disaster in history. Stalin had ordered that the plant be built in a hurry after ...

But few people know its secret. In September 1957, the Mayak nuclear plant exploded - the first major nuclear disaster in history. Stalin had ordered that the plant be built in a hurry after ...

In 1957, a massive nuclear accident took place at the top secret Mayak nuclear station in the Soviet Union. At the time, it was the largest nuclear disaster in history. So why has no one heard of it?

The proximate cause of the disaster was the Tōhoku earthquake and ... [10] While the 1957 explosion at the Mayak facility was the second worst by radioactivity released,[clarification needed ...