When an atom breaks apart, it gives out energy and more neutrons, which can then split other atoms. Get enough atoms splitting and you have the chain reaction needed for a bomb blast ...

In the coming days or hours he will determine whether to join the effort and help Israel destroy the Fordow reactor, located 90 meters below ground, the stronghold completing the production of nuclear ...

There are three natural isotopes of uranium — uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238). U-238 is the most common one, accounting for around 99 per cent of natural uranium found ...

It’s naturally radioactive, but its isotope uranium-235 also happens to be fissile, as Nazi nuclear chemists learned in 1938, ... causing the material to decay into uranium-233.

Natural uranium is 99.3% uranium-238 (U-238) and only 0.7% is uranium-235 ... spent fuel is placed in pools of water for five years as all of the short-lived nuclides decay away so just Cs and ...

Far more dangerous than U-235 are the elemental products given off when nuclear fuel goes through fission—especially iodine, ...

It takes approximately 4.5 billion years – roughly the life of the Earth – for half of a given quantity of uranium-238 to decay into other elements. U-235 has a half life of about 700 million ...

Although natural decay of U-235 means that this is unlikely to happen again, we humans have learned to take uranium ore and start a controlled fission process in reactors, beginning in the 1940s.

Destroying Iran's stores of enriched uranium would bring danger for people nearby but not trigger another Chernobyl.

Cerium-144, which undergoes inverse beta decay with a half-life of 411 days, is produced in slightly larger quantities by uranium-235 fission than by plutonium-239 fission, whereas ruthenium-106, ...