Uranium (chemical symbol U) is a naturally occurring radioactive element. In its pure form it is a silver-coloured heavy metal, similar to lead, cadmium and tungsten. Like tungsten it is very dense, ...

The stock of uranium enriched to up to 60% fissile purity, close to the roughly 90% of bomb grade, has been a long-standing concern for Western powers, which say there is no civil justification ...

The stock of uranium enriched to up to 60% fissile purity, close to the roughly 90% of bomb grade, has been a long-standing concern for Western powers, which say there is no civil justification ...

The stock of uranium enriched to up to 60% fissile purity, close to the roughly 90% of bomb grade, has been a long-standing concern for Western powers, which say there is no civil justification ...

In order to produce yellowcake, uranium ore is crushed and soaked in sulphuric acid, which acts as a leaching agent. Once each piece is dried and purified, it turns yellow, containing up to 90 per ...

The stock of uranium enriched to up to 60 per cent fissile purity, close to the roughly 90pc of bomb-grade, has been a long-standing concern for Western powers, which say there is no civil ...