According to several of the sources, German forces placed many concentration camp prisoners at the test site as human guinea ...

Ali Larijani, an adviser to Ayatollah Ali Khamenei, said while Iran was not pursuing nuclear weapons, an attack would leave ...

Scientists have been building nuclear weapons for more than 80 years, but crafting this technology remains a challenge.

The enrichment centrifuge is a device used to extract uranium-235 isotope from a sample of natural uranium. U-235 is fissile and thus useful to generate nuclear power and to build nuclear weapons.

The United Nations Security Council will meet behind closed doors on Wednesday over Iran's expansion of its stock of uranium close to weapons grade, diplomats said on Monday.

a figure close to the 90% required to produce a nuclear bomb. Uranium U-235 enriched to 5% is primarily used in commercial nuclear reactors for electricity generation. Between 5% and 20% is used ...

The International Atomic Energy Agency (IAEA) defines uranium as a Low Specific Activity material. In its natural state, it consists of three isotopes (U-234, U-235 and U-238). Other isotopes that ...

One route to producing fission fuel for nuclear weapons is enriching uranium - separating the highly fissionable uranium-235 isotope that constitutes approximately ... was more efficient than Oak ...

One route to producing fission fuel for nuclear weapons is enriching uranium - separating the highly fissionable uranium-235 isotope that ... Ridge and that German bomb designs used methods ...